{"product_id":"if-4000-interferential-ifc-unit-machine","title":"IF-4000 Interferential IFC Machine | Portable Physiotherapy Unit","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000 Interferential IFC Machine\u003c\/a\u003e is a portable, dual-channel interferential current therapy unit designed for professional physiotherapy, chiropractic, sports medicine, athletic training, and rehabilitation settings. It gives clinicians a simple, affordable way to use interferential current stimulation with either \u003cstrong\u003e2-electrode bipolar\u003c\/strong\u003e or \u003cstrong\u003e4-electrode quadrapolar\u003c\/strong\u003e treatment setups.\u003c\/p\u003e\n\u003cp\u003eUnlike a basic TENS unit, the IF-4000 is built specifically for \u003cstrong\u003einterferential current therapy\u003c\/strong\u003e, often called \u003cstrong\u003eIFC\u003c\/strong\u003e or \u003cstrong\u003eIFT\u003c\/strong\u003e. IFC uses medium-frequency electrical stimulation to create a lower-frequency “beat” effect at the treatment area. The IF-4000 uses a fixed \u003cstrong\u003e4000 Hz carrier frequency\u003c\/strong\u003e and an adjustable \u003cstrong\u003e1–150 Hz difference frequency\u003c\/strong\u003e, allowing clinicians to tailor stimulation feel and beat frequency based on the patient, treatment region, and professional protocol.\u003c\/p\u003e\n\u003cp\u003eFor full setup, settings, safety, and troubleshooting details, read our \u003ca href=\"https:\/\/www.balego.com\/blogs\/device-user-manual-setup-safety-and-specs\/if-4000-interferential-stimulator-guide-indications-settings-safety-and-how-to-use\"\u003eIF-4000 Interferential Stimulator Guide\u003c\/a\u003e. To compare related devices, browse Balego’s \u003ca href=\"https:\/\/www.balego.com\/collections\/interferential\"\u003eInterferential Therapy\u003c\/a\u003e collection and \u003ca href=\"https:\/\/www.balego.com\/collections\/electrotherapy-devices\"\u003eElectrotherapy Devices\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003chr\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\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000 Interferential IFC Machine\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalego Ref\u003c\/td\u003e\n\u003ctd\u003eINTERFERENTIAL-IFC-UNIT-MACHINE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eIF 4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice type\u003c\/td\u003e\n\u003ctd\u003ePortable interferential current therapy unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003eDual-channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode options\u003c\/td\u003e\n\u003ctd\u003e2-electrode bipolar or 4-electrode quadrupolar use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrier frequency\u003c\/td\u003e\n\u003ctd\u003e4000 Hz fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifference \/ beat frequency\u003c\/td\u003e\n\u003ctd\u003e1–150 Hz adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003e0–50 mA adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaveform\u003c\/td\u003e\n\u003ctd\u003eSymmetric biphasic square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse width\u003c\/td\u003e\n\u003ctd\u003e125 µs per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency shift modes\u003c\/td\u003e\n\u003ctd\u003eContinuous, 1\/1 abrupt, 8\/8 abrupt, 10\/10 ramped\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e9V battery or AC adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd\u003eUnit, carrying case, manual, AC adapter, 9V battery, 4 reusable electrodes, 43\" pin lead wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003ePT, chiropractic, sports medicine, athletic training, rehab, clinician-directed pain-modulation support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Choose the IF-4000?\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000\u003c\/a\u003e is a strong choice when you want a dedicated, portable IFC unit without paying for a larger multi-modality clinic console. It is simple, analog, straightforward to set up, and focused specifically on interferential current therapy.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAdvantage\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\u003e\u003cstrong\u003eDedicated IFC device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt specifically for interferential current therapy rather than general TENS-only use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2-electrode or 4-electrode operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports both focused bipolar setups and broader quadrupolar IFC placements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustable 1–150 Hz beat frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllows clinicians to select stimulation frequency based on patient tolerance and treatment goals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFour frequency-shift modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuous, abrupt, and ramped options help vary the stimulation pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePortable design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmall enough for treatment rooms, mobile care, athletic training rooms, or travel kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e9V battery or AC adapter power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWorks from battery power or wall power depending on setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAffordable clinic option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUseful as a dedicated “starter” IFC unit or backup device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eComes with electrodes, lead wires, battery, AC adapter, carrying case, and manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSimple analog controls\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEasy for trained users to adjust frequency, mode, and amplitude without menu navigation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat Is Interferential Current Therapy?\u003c\/h2\u003e\n\u003cp\u003eInterferential current therapy, often called \u003cstrong\u003eIFC\u003c\/strong\u003e or \u003cstrong\u003eIFT\u003c\/strong\u003e, uses two medium-frequency electrical currents that interact to create a lower-frequency beat effect. This is different from standard TENS, which usually applies low-frequency stimulation directly through the skin.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTerm\u003c\/th\u003e\n\u003cth\u003eMeaning\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIFC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterferential current therapy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIFT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInterferential therapy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCarrier frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe medium-frequency current used by the device, the IF-4000, uses 4000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBeat frequency \/ difference frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe lower-frequency therapeutic effect created by the difference between the two currents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBipolar \/ 2-pole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUses 2 electrodes for a more focused setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuadrapolar \/ 4-pole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUses 4 electrodes to create a crossed-current IFC field\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency shift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChanges the beat frequency pattern over time to vary sensation and reduce accommodation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor more education, read our \u003ca href=\"https:\/\/www.balego.com\/blogs\/interferential-current-therapy-ict\/interference-current-therapy-ict-versus-adjustable-interference-frequency-what-they-mean-how-they-differ\"\u003eInterferential Current Therapy and Adjustable Interference Frequency\u003c\/a\u003e guide.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e2-Electrode vs. 4-Electrode IFC Setups\u003c\/h2\u003e\n\u003cp\u003eThe IF-4000 supports both 2-electrode and 4-electrode operation. The best setup depends on the clinician’s treatment plan, treatment region, patient tolerance, and electrode placement goals.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSetup\u003c\/th\u003e\n\u003cth\u003eAlso Called\u003c\/th\u003e\n\u003cth\u003eElectrode Use\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2 electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBipolar IFC \/ 2-pole setup\u003c\/td\u003e\n\u003ctd\u003eOne electrode pair, connected through Channel 2 according to the \u003ca href=\"https:\/\/www.balego.com\/blogs\/device-user-manual-setup-safety-and-specs\/if-4000-interferential-stimulator-guide-indications-settings-safety-and-how-to-use\"\u003eIF-4000 guide\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003eFocused areas, smaller regions, simpler setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e4 electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuadrapolar IFC \/ 4-pole setup\u003c\/td\u003e\n\u003ctd\u003eTwo electrode pairs using both channels\u003c\/td\u003e\n\u003ctd\u003eBroader regions, crossed-current patterns, larger treatment fields\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBipolar advantage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSimpler placement\u003c\/td\u003e\n\u003ctd\u003eEasier to set up and monitor\u003c\/td\u003e\n\u003ctd\u003eGood for small or focused treatment areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuadrapolar advantage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBroader coverage\u003c\/td\u003e\n\u003ctd\u003eAllows a classic crossed IFC pattern\u003c\/td\u003e\n\u003ctd\u003eGood for larger regions such as the low back, hip, shoulder, or thigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequency Shift Modes Explained\u003c\/h2\u003e\n\u003cp\u003eThe IF-4000 includes four frequency-shift options. These vary how the stimulation pattern behaves over time.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMode\u003c\/th\u003e\n\u003cth\u003eHow It Feels\u003c\/th\u003e\n\u003cth\u003eBest Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContinuous\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteady, consistent stimulation\u003c\/td\u003e\n\u003ctd\u003eWhen a simple fixed sensation is preferred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/1 abrupt\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRapid switching between lower and higher frequency ranges\u003c\/td\u003e\n\u003ctd\u003eWhen more variation is desired\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e8\/8 abrupt\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSlower switching than 1\/1\u003c\/td\u003e\n\u003ctd\u003eWhen a less rapid change pattern is preferred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e10\/10 ramped\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmooth gradual sweep up and down\u003c\/td\u003e\n\u003ctd\u003eOften comfortable when a ramped sensation is preferred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFrequency shift may help reduce the body “getting used to” a single fixed sensation during a session. Always follow the clinician’s protocol and the device manual.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Professional Uses\u003c\/h2\u003e\n\u003cp\u003eThe IF-4000 should be positioned as a \u003cstrong\u003esymptom-management support tool\u003c\/strong\u003e, not a cure. It is best used as part of a broader professional treatment plan that may include movement, exercise, manual therapy, education, strengthening, mobility work, and appropriate medical evaluation.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSetting\u003c\/th\u003e\n\u003cth\u003eHow the IF-4000 Fits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical therapy clinics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDedicated IFC option for pain-modulation support during rehab plans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChiropractic offices\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePortable interferential current unit for clinic-based electrotherapy workflows\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSports medicine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUseful for clinician-directed acute or chronic symptom support around rehab activity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAthletic training rooms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBattery or AC power makes it practical for training room use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRehabilitation programs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCan be used alongside mobility, strengthening, and functional progressions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMobile care providers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompact design and carrying case support portability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHome programs under clinician direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMay be used when prescribed and properly instructed by a licensed professional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eIF-4000 vs. TENS: What Is the Difference?\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000\u003c\/a\u003e is not just another TENS unit. It is a dedicated interferential current unit. TENS and IFC are both forms of electrotherapy, but they are not identical.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eIF-4000 Interferential IFC Machine\u003c\/th\u003e\n\u003cth\u003eStandard TENS Unit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain modality\u003c\/td\u003e\n\u003ctd\u003eInterferential current therapy\u003c\/td\u003e\n\u003ctd\u003eTranscutaneous electrical nerve stimulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary setup\u003c\/td\u003e\n\u003ctd\u003e2-electrode or 4-electrode IFC\u003c\/td\u003e\n\u003ctd\u003eUsually 2 or 4 electrodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency approach\u003c\/td\u003e\n\u003ctd\u003eMedium-frequency carrier with adjustable beat frequency\u003c\/td\u003e\n\u003ctd\u003eLow-frequency stimulation delivered directly through the skin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical feel\u003c\/td\u003e\n\u003ctd\u003eOften described as comfortable tingling or deeper stimulation\u003c\/td\u003e\n\u003ctd\u003eTingling, tapping, pulsing, or buzzing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eClinician-directed IFC pain-modulation workflows\u003c\/td\u003e\n\u003ctd\u003eSensory stimulation for temporary pain modulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice choice\u003c\/td\u003e\n\u003ctd\u003eChoose IF-4000 when you specifically want IFC\u003c\/td\u003e\n\u003ctd\u003eChoose a \u003ca href=\"https:\/\/www.balego.com\/collections\/tens-units\"\u003eTENS unit\u003c\/a\u003e when you only need basic TENS programs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor a broader explanation of electrotherapy categories, visit our \u003ca href=\"https:\/\/www.balego.com\/collections\/electrotherapy-devices\"\u003eElectrotherapy Devices\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eIF-4000 vs. Other Balego IFC-Capable Devices\u003c\/h2\u003e\n\u003cp\u003eBalego carries several devices that include interferential or IFC-style stimulation. The IF-4000 is the most focused option because it is a dedicated IFC unit.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth align=\"right\"\u003eModes\u003c\/th\u003e\n\u003cth align=\"right\"\u003eChannels\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eWhy Choose It?\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000 Interferential IFC Machine\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eIFC only\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2\u003c\/td\u003e\n\u003ctd\u003eDedicated portable IFC\u003c\/td\u003e\n\u003ctd\u003eBest affordable analog IFC-only choice\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/intensity-if-combo-tens-machine-portable-tens-device-with-2-waveforms\"\u003eInTENSity IF Combo\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eTENS + IFC\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2\u003c\/td\u003e\n\u003ctd\u003eUsers who want both TENS and IFC\u003c\/td\u003e\n\u003ctd\u003eMore versatile than IFC-only, still portable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/if-combo-ii-portable-tens-device\"\u003eIF Combo II Portable TENS Device\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eTENS + IFC\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2\u003c\/td\u003e\n\u003ctd\u003ePreset-heavy pain workflow\u003c\/td\u003e\n\u003ctd\u003eIncludes guided body-part presets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/intensity-select-combo-ii\"\u003eInTENSity Select Combo II\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eTENS + NMES + IF + Russian\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2\u003c\/td\u003e\n\u003ctd\u003eMulti-mode portable electrotherapy\u003c\/td\u003e\n\u003ctd\u003eBest when one compact unit needs several modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/four-channel-tens-ems-if-russian-stimulator\"\u003eBalego Four Channel Stim\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eTENS + EMS\/NMES + IFC + Russian\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e4\u003c\/td\u003e\n\u003ctd\u003eLarger coverage or multiple treatment zones\u003c\/td\u003e\n\u003ctd\u003eBest portable 4-channel multi-mode option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/quattro-25-interferential-2-pole-4-pole-tens-ems-and-russian\"\u003eRichmar® Quattro™ 2.5\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"right\"\u003eTENS + EMS + Russian + 2-pole IF + 4-pole IFC\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e4\u003c\/td\u003e\n\u003ctd\u003eProfessional clinical electrotherapy\u003c\/td\u003e\n\u003ctd\u003eBest tabletop clinic unit with dual timers and presets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eWhen to Choose the IF-4000\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChoose the IF-4000 If You Need…\u003c\/th\u003e\n\u003cth\u003eWhy It Fits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA dedicated IFC machine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIt focuses on interferential current therapy without extra modes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAn affordable physiotherapy IFC unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLower-cost option compared with larger professional consoles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2-pole and 4-pole flexibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports both focused and broader treatment setups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA portable clinic or training-room unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRuns on a 9V battery or included AC adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSimple analog controls\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEasy for trained users to adjust manually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA backup IFC device\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUseful for clinics that want an extra unit for busy treatment days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA focused pain-modulation support tool\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDesigned for symptomatic support as part of a larger plan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat Comes in the Box?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Item\u003c\/th\u003e\n\u003cth\u003ePurpose\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIF-4000 unit\u003c\/td\u003e\n\u003ctd\u003eMain portable interferential current device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrying case\u003c\/td\u003e\n\u003ctd\u003eStorage and transport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruction manual\u003c\/td\u003e\n\u003ctd\u003eSetup, safety, and operating guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC adapter\u003c\/td\u003e\n\u003ctd\u003eWall-power option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9V heavy-duty battery\u003c\/td\u003e\n\u003ctd\u003ePortable battery-power option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 reusable self-adhering electrodes\u003c\/td\u003e\n\u003ctd\u003eStarter electrode set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e43\" pin-lead wires\u003c\/td\u003e\n\u003ctd\u003eConnects electrodes to the IF-4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-year warranty\u003c\/td\u003e\n\u003ctd\u003eProduct support coverage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatible Accessories and Replacement Supplies\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAccessory\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eLink\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplacement electrotherapy electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplacing worn starter pads\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/collections\/electrotherapy-electrodes\"\u003eElectrotherapy Electrodes\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBalego® TENS\/NMES\/FES Electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneral-purpose reusable replacement pads\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/balego-tens-nmes-fes-electrodes\"\u003eBalego® TENS\/NMES\/FES Electrodes\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2\" x 3.5\" Rectangle Electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLarger regions such as low back, hip, thigh, or shoulder\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/balego-tens-electrodes-2-x-35-in-rectangle-4package\"\u003eBalego 2\" x 3.5\" Rectangle Electrodes\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2\" Round Electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurved areas such as shoulder, knee, elbow, or ankle\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/balego-tens-electrodes-2-in-round-4package\"\u003eBalego 2\" Round Electrodes\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDURA-STICK® PLUS Electrodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClinic-friendly replacement electrode option\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/dura-stick-plus-tens-electrodes-42181\"\u003eDURA-STICK® PLUS Electrodes\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e45\" Safety Rotating Lead Wire Pair\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplacement lead wires for compatible portable electrotherapy devices\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/balego%C2%AE-45-safety-rotating-lead-wire-pair-2\"\u003eBalego® 45\" Safety Rotating Lead Wire Pair\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpectra® 360 Electrode Gel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConductive gel for compatible rubber\/carbon electrode workflows\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/spectra-360-electrode-gel\"\u003eSpectra® 360 Electrode Gel\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignaGel® Electrode Gel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMultipurpose conductive gel when device instructions call for gel\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/signagel-electrode-gel\"\u003eSignaGel® Electrode Gel\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eElectrode Placement and Comfort Tips\u003c\/h2\u003e\n\u003cp\u003eElectrode quality and placement can affect comfort, stimulation consistency, and treatment experience. Always use the IF-4000 according to the clinician’s instructions and the device manual.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTip\u003c\/th\u003e\n\u003cth\u003eWhy It Helps\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eApply electrodes to clean, dry, intact skin\u003c\/td\u003e\n\u003ctd\u003eImproves adhesion and reduces irritation risk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse the correct electrode setup\u003c\/td\u003e\n\u003ctd\u003e2-electrode and 4-electrode modes are connected differently\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePress pads firmly around the full edge\u003c\/td\u003e\n\u003ctd\u003eHelps prevent edge lifting and hot spots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplace worn or dried pads\u003c\/td\u003e\n\u003ctd\u003eOld pads can cause weak, sharp, or uneven stimulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeep pads separated\u003c\/td\u003e\n\u003ctd\u003eElectrodes should not touch each other during treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurn amplitude off before removing pads\u003c\/td\u003e\n\u003ctd\u003eReduces risk of unpleasant stimulation or shock sensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse larger pads for larger areas\u003c\/td\u003e\n\u003ctd\u003eA broader pad area may feel smoother and more comfortable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop if irritation occurs\u003c\/td\u003e\n\u003ctd\u003ePersistent redness, burning, or discomfort should be evaluated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eIF-4000\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\u003eDual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrier frequency\u003c\/td\u003e\n\u003ctd\u003e4000 Hz fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterference frequency\u003c\/td\u003e\n\u003ctd\u003e4001–4150 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifference \/ beat frequency\u003c\/td\u003e\n\u003ctd\u003e1–150 Hz adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput amplitude\u003c\/td\u003e\n\u003ctd\u003e0–50 mA adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e0–25 V, 50 V peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaveform\u003c\/td\u003e\n\u003ctd\u003eSymmetric biphasic square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse width\u003c\/td\u003e\n\u003ctd\u003e125 µs per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency shift options\u003c\/td\u003e\n\u003ctd\u003eContinuous, 1\/1 abrupt, 8\/8 abrupt, 10\/10 ramped\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower source\u003c\/td\u003e\n\u003ctd\u003e9V battery or AC adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e9.4 × 6.35 × 2.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 389 g with battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead wires\u003c\/td\u003e\n\u003ctd\u003e43\" pin lead wires included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000 Interferential IFC Machine\u003c\/a\u003e\u003c\/strong\u003e is a portable dual-channel interferential current therapy unit for professional physiotherapy, chiropractic, sports medicine, athletic training, and rehabilitation settings. It supports both \u003cstrong\u003e2-electrode bipolar\u003c\/strong\u003e and \u003cstrong\u003e4-electrode quadrapolar\u003c\/strong\u003e treatment setups, so clinicians can choose focused or broader stimulation patterns based on the treatment area.\u003c\/p\u003e\n\u003cp\u003eThe IF-4000 uses a fixed \u003cstrong\u003e4000 Hz carrier frequency\u003c\/strong\u003e with an adjustable \u003cstrong\u003e1–150 Hz difference frequency\u003c\/strong\u003e, giving clinicians control over the beat frequency used during treatment. Four frequency-shift modes—Continuous, 1\/1 abrupt, 8\/8 abrupt, and 10\/10 ramped—provide additional options for comfort and stimulation variation.\u003c\/p\u003e\n\u003cp\u003eEach IF-4000 includes the device, carrying case, instruction manual, AC adapter, 9V battery, four reusable self-adhering electrodes, one set of 43\" pin lead wires, and a 1-year warranty. For detailed instructions and safety guidance, read our \u003ca href=\"https:\/\/www.balego.com\/blogs\/device-user-manual-setup-safety-and-specs\/if-4000-interferential-stimulator-guide-indications-settings-safety-and-how-to-use\"\u003eIF-4000 Interferential Stimulator Guide\u003c\/a\u003e. For replacement supplies, shop \u003ca href=\"https:\/\/www.balego.com\/collections\/electrotherapy-electrodes\"\u003eElectrotherapy Electrodes\u003c\/a\u003e and the \u003ca href=\"https:\/\/www.balego.com\/products\/balego%C2%AE-45-safety-rotating-lead-wire-pair-2\"\u003eBalego® 45\" Safety Rotating Lead Wire Pair\u003c\/a\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eImportant Safety Notes\u003c\/h2\u003e\n\u003cp\u003eThe IF-4000 should be used only according to the device instructions and professional guidance. Interferential current therapy is symptom-focused and should not be presented as a cure for the underlying cause of pain.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSafety Topic\u003c\/th\u003e\n\u003cth\u003eGuidance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProfessional direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUse under the direction of a licensed clinician\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImplanted devices\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDo not use with pacemakers, implanted defibrillators, or implanted electronic devices unless specifically cleared by a qualified medical professional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnsafe placements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDo not place electrodes over the carotid sinus, throat, head, eyes, broken skin, or across unsafe current paths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUndiagnosed pain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDo not use for undiagnosed pain without medical evaluation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePregnancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSafety during pregnancy has not been established; use only with medical guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSkin condition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUse electrodes only on clean, dry, intact skin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECG monitoring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStimulation may interfere with monitoring equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDriving or machinery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDo not use during activities where stimulation could create risk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBathing or sleeping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDo not use while bathing, showering, or sleeping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSkin irritation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStop use if redness, burning, blistering, allergic reaction, or unusual discomfort occurs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eTroubleshooting Guide\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIssue\u003c\/th\u003e\n\u003cth\u003ePossible Cause\u003c\/th\u003e\n\u003cth\u003eWhat to Try\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe unit does not turn on\u003c\/td\u003e\n\u003ctd\u003eBattery depleted, AC adapter not connected, amplitude dial off\u003c\/td\u003e\n\u003ctd\u003eCheck battery, AC adapter, and power setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe low battery light appears\u003c\/td\u003e\n\u003ctd\u003eBattery voltage is low\u003c\/td\u003e\n\u003ctd\u003eReplace the 9V battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo stimulation in 2-electrode mode\u003c\/td\u003e\n\u003ctd\u003eLead connected to wrong channel\u003c\/td\u003e\n\u003ctd\u003eUse Channel 2 for 2-electrode mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeak stimulation\u003c\/td\u003e\n\u003ctd\u003eOld pads, poor adhesion, low battery, loose lead wire\u003c\/td\u003e\n\u003ctd\u003eReplace pads, check wires, clean skin, and replace the battery.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStinging or burning sensation\u003c\/td\u003e\n\u003ctd\u003ePad edge lifting, pads too close, worn electrodes, intensity too high\u003c\/td\u003e\n\u003ctd\u003eLower intensity, replace pads, improve contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUneven stimulation\u003c\/td\u003e\n\u003ctd\u003ePoor pad contact or unequal skin resistance\u003c\/td\u003e\n\u003ctd\u003eReposition pads and ensure full adhesion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePads do not stick\u003c\/td\u003e\n\u003ctd\u003eSkin oils, lotion, hair, sweat, old gel\u003c\/td\u003e\n\u003ctd\u003eClean skin, dry thoroughly, replace worn pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkin redness after use\u003c\/td\u003e\n\u003ctd\u003eSensitive skin, repeated placement, long treatment time\u003c\/td\u003e\n\u003ctd\u003eStop use, inspect skin, rotate placement sites\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput changes suddenly\u003c\/td\u003e\n\u003ctd\u003eLoose lead or poor electrode contact\u003c\/td\u003e\n\u003ctd\u003eTurn device off, reconnect securely, restart low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the IF-4000 used for?\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/www.balego.com\/products\/if-4000-interferential-ifc-unit-machine\"\u003eIF-4000\u003c\/a\u003e is a portable interferential current therapy device used in professional physiotherapy, chiropractic, sports medicine, athletic training, and rehabilitation settings to support symptomatic pain relief as part of a broader care plan.\u003c\/p\u003e\n\u003ch3\u003eIs the IF-4000 a TENS unit?\u003c\/h3\u003e\n\u003cp\u003eNo. The IF-4000 is a dedicated interferential current therapy unit. It is related to electrotherapy, but it is not a standard TENS-only device. For TENS-only devices, browse Balego’s \u003ca href=\"https:\/\/www.balego.com\/collections\/tens-units\"\u003eTENS Units\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between IFC and TENS?\u003c\/h3\u003e\n\u003cp\u003eTENS usually delivers low-frequency stimulation directly through the skin. IFC uses medium-frequency currents that interact to create a lower-frequency beat effect. IFC is often selected for larger or deeper treatment regions in clinician-directed care.\u003c\/p\u003e\n\u003ch3\u003eCan the IF-4000 use two electrodes?\u003c\/h3\u003e\n\u003cp\u003eYes. The IF-4000 supports 2-electrode bipolar operation. According to Balego’s \u003ca href=\"https:\/\/www.balego.com\/blogs\/device-user-manual-setup-safety-and-specs\/if-4000-interferential-stimulator-guide-indications-settings-safety-and-how-to-use\"\u003eIF-4000 guide\u003c\/a\u003e, use Channel 2 and set the electrode switch to the two-electrode position.\u003c\/p\u003e\n\u003ch3\u003eCan the IF-4000 use four electrodes?\u003c\/h3\u003e\n\u003cp\u003eYes. The IF-4000 supports quadrapolar use with four electrodes on both channels.\u003c\/p\u003e\n\u003ch3\u003eWhat frequency range does the IF-4000 offer?\u003c\/h3\u003e\n\u003cp\u003eThe IF-4000 uses a fixed 4000 Hz carrier frequency and an adjustable 1–150 Hz difference or beat frequency.\u003c\/p\u003e\n\u003ch3\u003eDoes the IF-4000 run on batteries?\u003c\/h3\u003e\n\u003cp\u003eYes. The IF-4000 can run on a 9V battery or the included AC adapter.\u003c\/p\u003e\n\u003ch3\u003eWhat comes with the IF-4000?\u003c\/h3\u003e\n\u003cp\u003eThe package includes the IF-4000 unit, carrying case, instruction manual, AC adapter, one 9V battery, four reusable self-adhering electrodes, and one set of 43\" pin lead wires.\u003c\/p\u003e\n\u003ch3\u003eWhat replacement electrodes work with the IF-4000?\u003c\/h3\u003e\n\u003cp\u003eUse compatible electrotherapy electrodes with the proper pin-style lead connection. Balego options include \u003ca href=\"https:\/\/www.balego.com\/products\/balego-tens-nmes-fes-electrodes\"\u003eBalego® TENS\/NMES\/FES Electrodes\u003c\/a\u003e, \u003ca href=\"https:\/\/www.balego.com\/products\/dura-stick-plus-tens-electrodes-42181\"\u003eDURA-STICK® PLUS Electrodes\u003c\/a\u003e, and the full \u003ca href=\"https:\/\/www.balego.com\/collections\/electrotherapy-electrodes\"\u003eElectrotherapy Electrodes\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3\u003eIs the IF-4000 better than an InTENSity IF Combo?\u003c\/h3\u003e\n\u003cp\u003eChoose the IF-4000 if you want a simple dedicated IFC machine. Choose the \u003ca href=\"https:\/\/www.balego.com\/products\/intensity-if-combo-tens-machine-portable-tens-device-with-2-waveforms\"\u003eInTENSity IF Combo\u003c\/a\u003e if you want both TENS and IFC in one portable device.\u003c\/p\u003e\n\u003ch3\u003eWhen should I choose a 4-channel device instead?\u003c\/h3\u003e\n\u003cp\u003eChoose the \u003ca href=\"https:\/\/www.balego.com\/products\/four-channel-tens-ems-if-russian-stimulator\"\u003eBalego Four Channel Stim\u003c\/a\u003e or \u003ca href=\"https:\/\/www.balego.com\/products\/quattro-25-interferential-2-pole-4-pole-tens-ems-and-russian\"\u003eRichmar® Quattro™ 2.5\u003c\/a\u003e if you need four channels, multiple treatment regions, or additional modes such as TENS, EMS\/NMES, or Russian stimulation.\u003c\/p\u003e\n\u003ch3\u003eIs IFC curative?\u003c\/h3\u003e\n\u003cp\u003eNo. IFC is symptom-focused. It may support temporary pain modulation, but it does not correct the underlying condition causing pain.\u003cem\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e","brand":"Balego","offers":[{"title":"Default Title","offer_id":47469469204735,"sku":"IF 4000","price":69.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/0570\/5983\/files\/IF-4000_Interferential_IFC_Machine_physiotherapy_unit.jpg?v=1783550132","url":"https:\/\/balego-stores.myshopify.com\/products\/if-4000-interferential-ifc-unit-machine","provider":"Balego","version":"1.0","type":"link"}