This streamlined cordless electrotherapy system delivers hours of drug-free pain relief from lower back pain. As powerful as professional equipment, the device employs Transcutaneous Electrical Nerve Stimulation (TENS), harmless electrical pulses that block pain signals passing through nerves to the brain. The system also increases blood flow to the area to promote healing and relaxation. According to the American Physical Therapy Association, TENS therapy can be an effective element of pain management for low-intensity discomfort. The compact three-button remote control initiates a 30-minute treatment session, adjusts the intensity of stimulation, and powers off the unit. Unlike TENS systems with multiple electrode cords and tethered battery packs, this thin, flexible unit doesn't impede movement, can be worn under clothing, and need not be removed between treatments. The adhesive electrode pads stay securely in place for up to 5 applications. Includes 40 gel pads (about a three month supply), two AAA batteries that provide up to 150 30-minute treatments, CR2032 battery for remote, and storage box. 7 1/2" L x 3" W x 3/4" D. (4 3/4 oz.)