{"product_id":"tens-nmes-4-channel-rechargeable","title":"iStim EV-805 Rechargeable 4-Channel TENS\/EMS Unit—24 Programs, 24 Pads","description":"\u003ch1\u003eiStim EV-805 Rechargeable 4-Channel TENS and EMS Unit\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eiStim EV-805\u003c\/strong\u003e is a rechargeable, four-channel electrotherapy device combining TENS sensory stimulation and EMS muscle stimulation in one portable system.\u003c\/p\u003e\n\u003cp\u003eFour independently adjustable output channels allow up to four electrode pairs—or eight electrodes—to be connected during one session. This provides more placement flexibility than a standard two-channel unit when broader coverage, bilateral placement, or multiple treatment regions are needed.\u003c\/p\u003e\n\u003cp\u003eThe EV-805 includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFive adjustable TENS modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThree adjustable EMS modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e12 preset TENS programs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e12 preset EMS programs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour independently adjustable channel intensities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo treatment timers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable pulse rate and pulse width\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable EMS ramp, contraction, and relaxation times\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRechargeable lithium-battery power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBacklit LCD display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour lead-wire sets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwenty-four reusable electrode pads in the current iStim retail package\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB charging equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe current rechargeable EV-805 is included in FDA clearance K202317 for lithium-battery-powered, over-the-counter TENS\/EMS devices.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eRechargeable TENS and EMS combination stimulator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour isolated output channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to eight electrodes in a four-channel setup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndependent 100-step intensity adjustment for each channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFive TENS modes: Burst, Normal, Modulation, SD1, and SD2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThree EMS modes: Constant, Synchronous, and Alternate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwenty-four total presets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwelve TENS presets and twelve EMS presets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePulse rate adjustable from 2–150 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePulse width adjustable from 50–300 microseconds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEMS ramp adjustable from 1–8 seconds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEMS contraction time adjustable from 2–90 seconds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEMS relaxation time adjustable from 0–90 seconds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo timers for separate channel groups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTreatment time adjustable from 1–60 minutes or continuous\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBacklit LCD screen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRechargeable lithium-battery system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB charger included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe current package lists 24 electrode pads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFDA 510(k) cleared for over-the-counter use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003eA one-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe EV-805 instructions document its four channels, adjustable parameters, two timers, modes, presets, output specifications, rechargeable package, and USB charging equipment.\u003c\/p\u003e\n\u003ch2\u003eQuick Product Summary\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eiStim EV-805\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eRechargeable TENS and EMS combination unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eiStim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eEV-805\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalego SKU\u003c\/td\u003e\n\u003ctd\u003eEV-805\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003eFour isolated output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum standard pad setup\u003c\/td\u003e\n\u003ctd\u003eEight electrodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModalities\u003c\/td\u003e\n\u003ctd\u003eTENS and EMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable TENS modes\u003c\/td\u003e\n\u003ctd\u003eBurst, Normal, Modulation, SD1, SD2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable EMS modes\u003c\/td\u003e\n\u003ctd\u003eConstant, Synchronous, Alternate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreset programs\u003c\/td\u003e\n\u003ctd\u003e24 total\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTENS presets\u003c\/td\u003e\n\u003ctd\u003eP1–P12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMS presets\u003c\/td\u003e\n\u003ctd\u003eP13–P24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse rate\u003c\/td\u003e\n\u003ctd\u003e2–150 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse width\u003c\/td\u003e\n\u003ctd\u003e50–300 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMS ramp\u003c\/td\u003e\n\u003ctd\u003e1–8 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMS on time\u003c\/td\u003e\n\u003ctd\u003e2–90 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMS off time\u003c\/td\u003e\n\u003ctd\u003e0–90 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTreatment timer\u003c\/td\u003e\n\u003ctd\u003e1–60 minutes or continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimers\u003c\/td\u003e\n\u003ctd\u003eTwo: CH1–CH2 and CH3–CH4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum published output\u003c\/td\u003e\n\u003ctd\u003eUp to 100 mA peak-to-peak into 500 ohms per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum published voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 50 V peak-to-peak into 500 ohms per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eBacklit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003eRechargeable lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging\u003c\/td\u003e\n\u003ctd\u003eUSB charger and charging lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded lead wires\u003c\/td\u003e\n\u003ctd\u003eFour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent iStim pad package\u003c\/td\u003e\n\u003ctd\u003e24 pads in three styles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode connector\u003c\/td\u003e\n\u003ctd\u003e2 mm pin-style connection in published technical documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFDA status\u003c\/td\u003e\n\u003ctd\u003eOTC Class II, 510(k) cleared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFDA clearance\u003c\/td\u003e\n\u003ctd\u003eK202317\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest fit\u003c\/td\u003e\n\u003ctd\u003eUsers needing TENS and EMS with more coverage than a two-channel unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAn asymmetrical rectangular monophasic waveform and the output ranges shown above. Use the instructions packaged with the current rechargeable unit as the final authority if specifications or accessories are revised.\u003c\/p\u003e\n\u003ch2\u003eWhat Does Four-Channel TENS\/EMS Mean?\u003c\/h2\u003e\n\u003cp\u003eEach channel controls one lead wire connected to a pair of electrodes.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"right\"\u003eChannels in use\u003c\/th\u003e\n\u003cth align=\"right\"\u003eTypical electrode count\u003c\/th\u003e\n\u003cth\u003ePractical application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e1 channel\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2 pads\u003c\/td\u003e\n\u003ctd\u003eSmall, focused area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e2 channels\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e4 pads\u003c\/td\u003e\n\u003ctd\u003eOne larger region or bilateral placement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e3 channels\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e6 pads\u003c\/td\u003e\n\u003ctd\u003eBroader or multi-region setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e4 channels\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e8 pads\u003c\/td\u003e\n\u003ctd\u003eMaximum coverage or multiple electrode-pair placements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFour channels can be useful when the treatment plan calls for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eBroader back or extremity coverage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRight-and-left symmetrical placement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMultiple muscles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo separate treatment regions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdditional placement flexibility without repeatedly moving pads\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFour channels do not automatically mean stronger treatment. Each channel’s intensity should be adjusted according to pad location, skin response, comfort, and the intended TENS or EMS goal.\u003c\/p\u003e\n\u003ch2\u003eTENS and EMS in One Device\u003c\/h2\u003e\n\u003cp\u003eAlthough TENS and EMS both use surface electrodes, they are intended to create different responses.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eTENS\u003c\/th\u003e\n\u003cth\u003eEMS \/ NMES\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary target\u003c\/td\u003e\n\u003ctd\u003eSensory nerves\u003c\/td\u003e\n\u003ctd\u003eMotor nerves and muscle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended response\u003c\/td\u003e\n\u003ctd\u003eTingling, tapping, buzzing, or pulsing\u003c\/td\u003e\n\u003ctd\u003eVisible or palpable muscle contraction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain EV-805 role\u003c\/td\u003e\n\u003ctd\u003eTemporary pain-modulation support\u003c\/td\u003e\n\u003ctd\u003eHealthy-muscle stimulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical intensity\u003c\/td\u003e\n\u003ctd\u003eStrong but comfortable sensory level\u003c\/td\u003e\n\u003ctd\u003eStrong enough for a controlled contraction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisible movement expected\u003c\/td\u003e\n\u003ctd\u003eUsually not.\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming\u003c\/td\u003e\n\u003ctd\u003eContinuous, burst, or modulated patterns\u003c\/td\u003e\n\u003ctd\u003eRamp and contraction\/rest cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePad placement\u003c\/td\u003e\n\u003ctd\u003eAround or near the symptomatic area\u003c\/td\u003e\n\u003ctd\u003eOver the target muscle and motor points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe EV-805 operates in either TENS mode or EMS mode. It is not intended to deliver TENS and EMS simultaneously during the same program. The user selects one modality at a time.\u003c\/p\u003e\n\u003cp\u003eFor a more detailed explanation, read \u003ca href=\"https:\/\/www.balego.com\/blogs\/which-modalities-to-use\/tens-vs-nmes\"\u003eTENS vs. NMES: Key Differences, Uses, Benefits, and Safety\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFive Adjustable TENS Modes\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTENS mode\u003c\/th\u003e\n\u003cth\u003eHow it operates\u003c\/th\u003e\n\u003cth\u003eGeneral sensation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNormal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuous stimulation using the selected rate and width\u003c\/td\u003e\n\u003ctd\u003eSteady tingling or tapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBurst\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGroups higher-frequency pulses into slower rhythmic bursts\u003c\/td\u003e\n\u003ctd\u003eMore pronounced rhythmic pulsing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomatically varies pulse rate and pulse width\u003c\/td\u003e\n\u003ctd\u003eChanging or wave-like sensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModulates pulse width and intensity through a narrower strength-duration range\u003c\/td\u003e\n\u003ctd\u003eGradually changing sensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSD2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModulates pulse width and intensity through a broader range\u003c\/td\u003e\n\u003ctd\u003eMore noticeable variation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Normal and Modulation modes allow pulse rate and pulse width to be customized. Burst mode uses grouped pulses, while SD1 and SD2 automatically vary the stimulation pattern.\u003c\/p\u003e\n\u003cp\u003eRead \u003ca href=\"https:\/\/www.balego.com\/blogs\/tens-guides\/what-the-five-tens-modes-burst-normal-modulation-sd1-and-sd2-are-used-for\"\u003eWhat the Five TENS Modes Are Used For\u003c\/a\u003e for additional mode guidance.\u003c\/p\u003e\n\u003ch2\u003eThree Adjustable EMS Modes\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEMS mode\u003c\/th\u003e\n\u003cth\u003eOutput pattern\u003c\/th\u003e\n\u003cth\u003ePractical distinction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuous stimulation using the selected pulse settings\u003c\/td\u003e\n\u003ctd\u003eUsed when uninterrupted output is required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSynchronous\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConnected channel outputs contract together\u003c\/td\u003e\n\u003ctd\u003eUseful for simultaneous or bilateral contraction patterns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlternate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChannel outputs take turns\u003c\/td\u003e\n\u003ctd\u003eUseful for alternating or reciprocal contraction patterns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eEMS programs are intended to produce a controlled muscle contraction. The correct intensity is therefore normally higher than sensory-level TENS, but the contraction should remain tolerable and should not feel sharp, burning, or painful.\u003c\/p\u003e\n\u003ch3\u003eEMS timing rules\u003c\/h3\u003e\n\u003cp\u003eThe published instructions state:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOn time must be long enough to include ramp-up and ramp-down.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIn Alternate mode, off time should be equal to or greater than on time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRest time helps control muscle fatigue.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEach channel group should be programmed according to the target muscle and treatment goal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTwenty-Four Preset Programs\u003c\/h2\u003e\n\u003cp\u003eThe EV-805 includes 24 preset programs in addition to its manually adjustable modes.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProgram group\u003c\/th\u003e\n\u003cth\u003ePrograms\u003c\/th\u003e\n\u003cth\u003eModality\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eP1–P12\u003c\/td\u003e\n\u003ctd\u003e12 programs\u003c\/td\u003e\n\u003ctd\u003eTENS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP13–P24\u003c\/td\u003e\n\u003ctd\u003e12 programs\u003c\/td\u003e\n\u003ctd\u003eEMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTENS presets\u003c\/h3\u003e\n\u003cp\u003eThe TENS presets use different combinations of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNormal stimulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBurst stimulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eModulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFixed pulse rates\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMixed frequencies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrequency sweeps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDifferent pulse widths\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEMS presets\u003c\/h3\u003e\n\u003cp\u003eThe EMS presets vary:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePulse rate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePulse width\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRamp time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContraction time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRelaxation time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe EMS presets use synchronous mode in the published program table, with progressively different work-and-rest timing.\u003c\/p\u003e\n\u003cp\u003ePreset numbers should not be marketed as diagnosis-specific treatment prescriptions unless the current manufacturer manual expressly assigns them to a condition or body part.\u003c\/p\u003e\n\u003ch2\u003eTwo Independent Treatment Timers\u003c\/h2\u003e\n\u003cp\u003eThe EV-805 provides two timers:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTimer\u003c\/th\u003e\n\u003cth\u003eChannels controlled\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeft timer\u003c\/td\u003e\n\u003ctd\u003eChannels 1 and 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRight timer\u003c\/td\u003e\n\u003ctd\u003eChannels 3 and 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis permits the two channel groups to operate for different durations. Treatment time can be adjusted from 1–60 minutes, with continuous operation available where permitted by the selected mode.\u003c\/p\u003e\n\u003cp\u003eFor example, a trained user may set the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eChannels 1–2 for one treatment time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannels 3–4 for a separate treatment time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe treatment modality remains TENS or EMS across the device; the timers do not allow one channel group to run TENS while the other runs EMS.\u003c\/p\u003e\n\u003ch2\u003eFour Independently Adjustable Intensity Levels\u003c\/h2\u003e\n\u003cp\u003eEach channel has its own increase and decrease controls. The published manual describes 100 linear adjustment steps per channel.\u003c\/p\u003e\n\u003cp\u003eThis is useful because\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSkin sensitivity differs between body areas.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOne electrode pair may be closer to a superficial nerve.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarger pads may feel different from smaller pads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRight and left sides may have different tolerances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEMS motor points may require different intensities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not assume all four channels should display the same intensity.\u003c\/p\u003e\n\u003ch2\u003eRechargeable Lithium-Battery Power\u003c\/h2\u003e\n\u003cp\u003eThe EV-805 is the lithium-battery rechargeable version cleared under FDA K202317. \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRechargeable feature\u003c\/th\u003e\n\u003cth\u003ePractical advantage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in lithium-battery system\u003c\/td\u003e\n\u003ctd\u003eReduces disposable-battery purchases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB charging\u003c\/td\u003e\n\u003ctd\u003eAllows charging between sessions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-battery indicator\u003c\/td\u003e\n\u003ctd\u003eHelps identify when charging is needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBelt clip\u003c\/td\u003e\n\u003ctd\u003eSupports portable use when safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo wall power during treatment\u003c\/td\u003e\n\u003ctd\u003eKeeps treatment battery-operated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe EV-805 is rechargeable, but it is \u003cstrong\u003enot wireless\u003c\/strong\u003e. Four lead wires connect the device to the electrode pads.\u003c\/p\u003e\n\u003cp\u003eDo not use the device while it is connected to a charger unless the current included instructions explicitly permit operation during charging.\u003c\/p\u003e\n\u003ch2\u003eWhat Comes With the EV-805?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded item\u003c\/th\u003e\n\u003cth align=\"right\"\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEV-805 rechargeable TENS\/EMS device\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode pads\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 × 2-inch standard pads\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 × 4-inch rectangular pads\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 × 2-inch black pads\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead-wire sets\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB charger and charging lead\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e1 set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruction manual\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuick guides\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResealable electrode storage bags\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eHow to Set Up the EV-805\u003c\/h2\u003e\n\u003ch3\u003e1. Charge the device\u003c\/h3\u003e\n\u003cp\u003eCharge the unit using the supplied charging equipment before initial use.\u003c\/p\u003e\n\u003ch3\u003e2. Keep every channel at zero\u003c\/h3\u003e\n\u003cp\u003eConfirm that all four output intensities are at zero before connecting lead wires or applying pads.\u003c\/p\u003e\n\u003ch3\u003e3. Connect the lead wires\u003c\/h3\u003e\n\u003cp\u003eInsert the required lead wires into Channels 1–4.\u003c\/p\u003e\n\u003cp\u003eOnly connect the number of channels needed for the planned setup.\u003c\/p\u003e\n\u003ch3\u003e4. Connect the electrodes\u003c\/h3\u003e\n\u003cp\u003eAttach two electrodes to each active lead wire.\u003c\/p\u003e\n\u003ch3\u003e5. Prepare the skin\u003c\/h3\u003e\n\u003cp\u003eApply pads only to clean, dry, intact skin. Remove lotion, oil, perspiration, and dirt.\u003c\/p\u003e\n\u003ch3\u003e6. Position the electrodes\u003c\/h3\u003e\n\u003cp\u003eFor TENS, place electrodes around or near the intended treatment area as directed.\u003c\/p\u003e\n\u003cp\u003eFor EMS, place electrodes over the target muscle and appropriate motor point region so the desired muscle contracts.\u003c\/p\u003e\n\u003ch3\u003e7. Select TENS or EMS\u003c\/h3\u003e\n\u003cp\u003eChoose the modality that matches the goal:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTENS for sensory-level stimulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEMS for contraction-based muscle stimulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e8. Select a mode or preset\u003c\/h3\u003e\n\u003cp\u003eChoose an adjustable mode or one of the P1–P24 presets.\u003c\/p\u003e\n\u003ch3\u003e9. Set the timers\u003c\/h3\u003e\n\u003cp\u003eSet the CH1–CH2 timer and CH3–CH4 timer as needed.\u003c\/p\u003e\n\u003ch3\u003e10. Increase each channel separately\u003c\/h3\u003e\n\u003cp\u003eRaise intensity one channel at a time until the desired comfortable TENS sensation or controlled EMS contraction is reached.\u003c\/p\u003e\n\u003ch3\u003e11. Monitor the session\u003c\/h3\u003e\n\u003cp\u003eStop or reduce stimulation for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSharp or burning sensation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePain\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUnwanted muscle movement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRapid fatigue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWorsening symptoms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSkin irritation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDizziness or another unusual reaction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e12. Reduce all channels before removing pads\u003c\/h3\u003e\n\u003cp\u003eReturn all four intensity levels to zero and turn the unit off before disconnecting or repositioning electrodes.\u003c\/p\u003e\n\u003ch2\u003eWhat Should TENS Feel Like?\u003c\/h2\u003e\n\u003cp\u003eTENS commonly feels like\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTingling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuzzing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTapping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRhythmic pulsing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA changing sensation in Modulation, SD1, or SD2 modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe intensity should be strong and clearly noticeable but comfortable. Typical sensory-level TENS should not create a forceful muscle contraction.\u003c\/p\u003e\n\u003ch2\u003eWhat Should EMS Feel Like?\u003c\/h2\u003e\n\u003cp\u003eEMS begins as tingling and increases until the target muscle contracts.\u003c\/p\u003e\n\u003cp\u003eA normal work-rest cycle may feel like\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eThe stimulation gradually increases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe muscle tightens.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe contraction remains active.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe output gradually decreases.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe muscle rests.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe cycle repeats.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe contraction should be visible or palpable, controlled, and tolerable.\u003c\/p\u003e\n\u003ch2\u003eEV-805 vs. EV-804\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eEV-805\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/tens-nmes-rechargeable\"\u003eEV-804\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum standard electrodes\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModalities\u003c\/td\u003e\n\u003ctd\u003eTENS and EMS\u003c\/td\u003e\n\u003ctd\u003eTENS and EMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal presets\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable TENS modes\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable EMS modes\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e2–3 depending on current model documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimers\u003c\/td\u003e\n\u003ctd\u003eTwo channel-group timers\u003c\/td\u003e\n\u003ctd\u003eSingle-device timer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRechargeable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent included pads\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest fit\u003c\/td\u003e\n\u003ctd\u003eLarger areas, bilateral setups, or multiple placements\u003c\/td\u003e\n\u003ctd\u003eCompact two-channel TENS\/EMS use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eChoose the EV-804 when portability and two-channel simplicity are enough. Choose the EV-805 when four-channel coverage and separate timer groups justify the larger device.\u003c\/p\u003e\n\u003ch2\u003eEV-805 vs. Four-Channel Twin Stim Plus DS5402\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eEV-805\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/4-channel-tens-ems-ifc-russian-stimulator\"\u003eFour-Channel Twin Stim Plus DS5402\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTENS\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMS\/NMES\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterferential \/ IFC\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRussian stimulation\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRechargeable\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther power\u003c\/td\u003e\n\u003ctd\u003eUSB charging\u003c\/td\u003e\n\u003ctd\u003eFour AA batteries or AC adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePresets\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003eModality-specific manual programs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimers\u003c\/td\u003e\n\u003ctd\u003eTwo\u003c\/td\u003e\n\u003ctd\u003eTwo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded pads\u003c\/td\u003e\n\u003ctd\u003eThe current package lists 24\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest fit\u003c\/td\u003e\n\u003ctd\u003eRechargeable four-channel TENS\/EMS\u003c\/td\u003e\n\u003ctd\u003eFour-channel multimodality clinical workflows\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eChoose the EV-805 when TENS and EMS meet the treatment need and rechargeable power is preferred.\u003c\/p\u003e\n\u003cp\u003eChoose the \u003ca href=\"https:\/\/www.balego.com\/products\/4-channel-tens-ems-ifc-russian-stimulator\"\u003eDS5402 \u003c\/a\u003ewhen four channels are required together with interferential current and Russian stimulation.\u003c\/p\u003e\n\u003ch2\u003eWhich Device Is the Best Fit?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBuyer priority\u003c\/th\u003e\n\u003cth\u003eRecommended Balego option\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRechargeable four-channel TENS and EMS\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/tens-nmes-4-channel-rechargeable\"\u003eiStim EV-805\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompact two-channel TENS and EMS\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/tens-nmes-rechargeable\"\u003eiStim EV-804\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDedicated NMES muscle stimulation\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/nmes-muscle-stimulator\"\u003eBalego EMS Digital NMES Stimulator\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDedicated TENS only\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/balego-tens-digital-edition-unit-with-100ma-output-and-5-modes\"\u003eBalego TENS Digital Edition\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFDA-Cleared Intended Use\u003c\/h2\u003e\n\u003cp\u003eThe lithium-battery EV-805 is cleared under K202317 for over-the-counter use.\u003c\/p\u003e\n\u003ch3\u003eTENS function\u003c\/h3\u003e\n\u003cp\u003eThe cleared TENS indication is temporary relief of pain associated with sore and aching muscles in the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eThe low back\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe arms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThe legs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cleared wording associates this discomfort with strain from exercise or normal household and work activities.\u003c\/p\u003e\n\u003ch3\u003eEMS function\u003c\/h3\u003e\n\u003cp\u003eThe cleared EMS indication is stimulation of healthy muscles to improve or facilitate muscle performance.\u003c\/p\u003e\n\u003cp\u003eThe product page should not state or imply that the EV-805:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCures chronic pain\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTreats arthritis itself\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRepairs injured tissue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReverses nerve damage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePrevents blood clots\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTreats medical muscle disease\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReplaces physical therapy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduces permanent pain relief\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDelivers TENS and EMS simultaneously\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety Information\u003c\/h2\u003e\n\u003cp\u003eDo not use this device with a cardiac pacemaker, implanted defibrillator, or another implanted electronic device.\u003c\/p\u003e\n\u003cp\u003eDo not place electrodes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOn the head or face\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOver the eyes or mouth\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOn the front or sides of the neck\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOver the carotid sinus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAcross the chest\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFrom the front to the back of the torso\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOver broken, inflamed, infected, or irritated skin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOver known or suspected cancerous lesions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIn a position prohibited by the current manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eObtain medical guidance before use when there is\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePregnancy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuspected heart disease\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEpilepsy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecent surgery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eImpaired sensation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA tendency toward internal bleeding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUndiagnosed or changing pain\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnother significant medical concern\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not use the EV-805 while driving, operating machinery, swimming, bathing, or performing an activity in which an involuntary contraction could create injury.\u003c\/p\u003e\n\u003ch2\u003eElectrode Care\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCare step\u003c\/th\u003e\n\u003cth\u003eWhy it matters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApply to clean, dry skin\u003c\/td\u003e\n\u003ctd\u003eSupports adhesion and even current delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvoid touching the hydrogel\u003c\/td\u003e\n\u003ctd\u003ePreserves tack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemove pads from the edge\u003c\/td\u003e\n\u003ctd\u003eProtects the pigtail connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReturn pads to the liner\u003c\/td\u003e\n\u003ctd\u003eReduces drying\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStore in resealable bags\u003c\/td\u003e\n\u003ctd\u003eProtects the gel between sessions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDo not share pads\u003c\/td\u003e\n\u003ctd\u003eSupports hygiene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDo not add extra gel\u003c\/td\u003e\n\u003ctd\u003eThe included pads are self-adhering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplace worn pads\u003c\/td\u003e\n\u003ctd\u003ePoor adhesion can cause sharp or uneven stimulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eReplace pads when they:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNo longer adhere\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCurl at the edges\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBecome dry or dirty\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProduce sharp stimulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHave damaged backing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDevelop an intermittent connection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHave been used by another person\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProblem\u003c\/th\u003e\n\u003cth\u003ePossible cause\u003c\/th\u003e\n\u003cth\u003eSuggested response\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo stimulation\u003c\/td\u003e\n\u003ctd\u003eChannel intensity is at zero\u003c\/td\u003e\n\u003ctd\u003eIncrease the correct channel gradually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOne channel does not work\u003c\/td\u003e\n\u003ctd\u003eLoose lead wire or pad connection\u003c\/td\u003e\n\u003ctd\u003eReconnect and inspect accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeak output\u003c\/td\u003e\n\u003ctd\u003eLow battery or poor pad contact\u003c\/td\u003e\n\u003ctd\u003eRecharge and inspect electrodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSharp sensation\u003c\/td\u003e\n\u003ctd\u003eDry gel or lifted pad edge\u003c\/td\u003e\n\u003ctd\u003eTurn off and replace or reposition the pad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOne channel feels stronger\u003c\/td\u003e\n\u003ctd\u003eDifferent pad position or skin resistance\u003c\/td\u003e\n\u003ctd\u003eAdjust each channel independently\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWrong muscle contracts\u003c\/td\u003e\n\u003ctd\u003eIncorrect EMS placement\u003c\/td\u003e\n\u003ctd\u003eTurn off and reposition over the intended muscle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMuscle fatigues quickly\u003c\/td\u003e\n\u003ctd\u003eExcessive intensity or inadequate off time\u003c\/td\u003e\n\u003ctd\u003eStop and review the EMS settings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe unit appears locked\u003c\/td\u003e\n\u003ctd\u003eThe safety lock may have engaged\u003c\/td\u003e\n\u003ctd\u003eFollow the current manual’s unlock procedure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkin remains red or irritated\u003c\/td\u003e\n\u003ctd\u003eSensitivity or excessive current density\u003c\/td\u003e\n\u003ctd\u003eStop further use until resolved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe device will not charge\u003c\/td\u003e\n\u003ctd\u003eCharging cable, adapter, or battery issue\u003c\/td\u003e\n\u003ctd\u003eStop using damaged charging accessories and contact support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs the iStim EV-805 a TENS unit or an EMS unit?\u003c\/h3\u003e\n\u003cp\u003eIt is both. The device includes separate TENS sensory-stimulation and EMS muscle-stimulation functions.\u003c\/p\u003e\n\u003ch3\u003eCan TENS and EMS operate at the same time?\u003c\/h3\u003e\n\u003cp\u003eNo. The device operates in either TENS mode or EMS mode, not both simultaneously.\u003c\/p\u003e\n\u003ch3\u003eHow many channels does the EV-805 have?\u003c\/h3\u003e\n\u003cp\u003eIt has four independent output channels.\u003c\/p\u003e\n\u003ch3\u003eHow many pads can be used at once?\u003c\/h3\u003e\n\u003cp\u003eA standard four-channel configuration uses eight electrodes—two electrodes per channel.\u003c\/p\u003e\n\u003ch3\u003eHow many programs are included?\u003c\/h3\u003e\n\u003cp\u003eThe EV-805 has 24 preset programs: 12 TENS presets and 12 EMS presets.\u003c\/p\u003e\n\u003ch3\u003eWhat TENS modes are included?\u003c\/h3\u003e\n\u003cp\u003eBurst, Normal, Modulation, SD1, and SD2.\u003c\/p\u003e\n\u003ch3\u003eWhat EMS modes are included?\u003c\/h3\u003e\n\u003cp\u003eConstant, Synchronous, and Alternate.\u003c\/p\u003e\n\u003ch3\u003eIs the EV-805 rechargeable?\u003c\/h3\u003e\n\u003cp\u003eYes. The current EV-805 is a lithium-battery-powered rechargeable model with USB charging equipment.\u003c\/p\u003e\n\u003ch3\u003eIs the EV-805 wireless?\u003c\/h3\u003e\n\u003cp\u003eNo. Four lead-wire sets connect the unit to the electrodes.\u003c\/p\u003e\n\u003ch3\u003eDoes it have separate timers?\u003c\/h3\u003e\n\u003cp\u003eYes. One timer controls Channels 1–2, and the second controls Channels 3–4.\u003c\/p\u003e\n\u003ch3\u003eWhat is the timer range?\u003c\/h3\u003e\n\u003cp\u003eOne to 60 minutes or continuous, depending on the selected program.\u003c\/p\u003e\n\u003ch3\u003eWhat is the pulse-rate range?\u003c\/h3\u003e\n\u003cp\u003eTwo to 150 Hz.\u003c\/p\u003e\n\u003ch3\u003eWhat is the pulse-width range?\u003c\/h3\u003e\n\u003cp\u003eFifty to 300 microseconds.\u003c\/p\u003e\n\u003ch3\u003eWhat is the maximum output?\u003c\/h3\u003e\n\u003cp\u003ePublished EV-805 specifications list up to 100 mA peak-to-peak into a 500-ohm load per channel.\u003c\/p\u003e\n\u003ch3\u003eHow many pads are included?\u003c\/h3\u003e\n\u003cp\u003eThe current iStim retail listing describes a 24-pad package using three pad types. Balego should confirm that its present inventory matches that package.\u003c\/p\u003e\n\u003ch3\u003eAre the included pads made in Japan?\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer identifies Japanese hydrogel. It does not clearly establish that the finished electrode pads are manufactured in Japan.\u003c\/p\u003e\n\u003ch3\u003eIs the EV-805 FDA approved?\u003c\/h3\u003e\n\u003cp\u003eThe accurate term is \u003cstrong\u003e\"FDA 510(k) cleared,\"\u003c\/strong\u003e not \"FDA approved.\"\u003c\/p\u003e\n\u003ch3\u003eCan Balego electrodes be used with the EV-805?\u003c\/h3\u003e\n\u003cp\u003eThey may be compatible when the lead wire uses the matching 2 mm pin-style connection. Confirm the connector and current device instructions before ordering.\u003c\/p\u003e\n\u003ch3\u003eDoes EMS build muscle?\u003c\/h3\u003e\n\u003cp\u003eEMS can stimulate healthy muscles and may support muscle-performance programs. It should not be presented as a complete replacement for voluntary exercise, progressive resistance training, or rehabilitation.\u003c\/p\u003e\n\u003ch3\u003eIs the EV-805 appropriate for professional clinics?\u003c\/h3\u003e\n\u003cp\u003eIts four channels, adjustable settings, and dual timers can be useful in therapy, sports medicine, or athletic-training settings. Each facility should confirm that the device, OTC labeling, cleaning requirements, and single-user electrode practices meet its intended workflow.\u003c\/p\u003e\n\u003ch2\u003eFinal Product Summary\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEV-805 Rechargeable 4-Channel TENS\/EMS Unit\u003c\/strong\u003e is best suited to buyers who need the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMore coverage than a two-channel stimulator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBoth TENS and EMS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour independent intensity controls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwenty-four preset programs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManual pulse-rate and pulse-width adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEMS ramp and work-rest programming\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTwo channel-group timers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRechargeable lithium-battery power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA large starter electrode package\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iStim","offers":[{"title":"Default Title","offer_id":48841338192127,"sku":"EV-805","price":125.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/0570\/5983\/files\/TENS-EMS-EV-805-4-Channel-TENS-EMS-Rechargeable.webp?v=1784175335","url":"https:\/\/balego-stores.myshopify.com\/products\/tens-nmes-4-channel-rechargeable","provider":"Balego","version":"1.0","type":"link"}