InTENSity IF Combo (TENS IF) Device Assorted MARVEL products Size: Normal Select Ear:Left Ear Size: Normal * Microprocessor control unit ensures synchronous operation of all four columns The IF Combo has four modes of operation in both TENS and Interferential ensuring that your patient is getting the most pain relief Simple to operate portable device for pain management Combines TENS and Interferential treatment for patients needing stronger therapy Comes complete with carrying case two sets of lead wires 9 volt battery AC adapter manual and pack of four self adhesive reusable electrodes Power Source: Standard 9 volt battery or AC adapter Dimensions: 4