OMRON E3 Intense is a drug-free pain reliever, with 6 pre-set programs for back, shoulders, joints and muscles. TENS (Transcutaneous Electrical Nerve Stimulation) is a clinically proven technology widely used by physiotherapists and pain specialists. OMRON pain relievers enable you to relieve your pain symptoms. The electrical pulses, which are comparable to the natural bioelectricity (body electricity), stimulate the body's pain relieving mechanism. The E3 is convenient and features a compact design for use at home, work or when travelling by plane and train. Features: Triple action TENS technology: helps to block the painmessage, to trigger the release of endorphins and toimprove blood circulation Customized treatment options: 3 main therapy choices,9 preset TENS modes for dedicated body zones, 15 intensitysettings to customize the treatment Long Life pads: washable and reusable up to 150 time Compact design: convenient to take with you Specifications: Dimensions: H:11.2 x W:5.2 x D: