This is the home electrotherapy system that delivers drug-free pain relief through a simple, snug back wrap. Four reusable adhesive electrodes in the belt (two on each side of the spine) employ Transcutaneous Electrical Nerve Stimulation (TENS), a common pain therapy that delivers controlled electrical pulses that stimulate nerves, dulling the effects of low-intensity aches and pains. The American Physical Therapy Association endorses TENS therapy as an effective element of pain management for low levels of discomfort. A tethered digital controller allows users to select from eight customized programs, adjust the duration and intensity level, and counts down the time remaining in each session. The belt comes with a 13" extender that enables it to fit most waist sizes, it can be spot cleaned, and it comes with a canvas storage bag to hold all items. Includes two AAA batteries. 42" L x 5 1/2" W. (1 lb.)