The Veridian model 22-034, TENS Rechargeable Pain Management Solution has electronic nerve stimulation to provide temporary pain relief to shoulders, waist, back, neck, arms, and legs. 5-Pulse frequency modes (massage, acupuncture, tapping, scraping and combination) and 15-intensity levels. No prescription required. Self-adhesive gel-style electrode pads that you can reuse up to 50 uses. Wireless, portable design. 20 minute therapy sessions with automatic shut-off. Up to 6-hours of treatment on a single charge. Includes: Tens control unit, 2 electrode pads, USB cable, AC power adapter, storage case, detailed English/Spanish instructions and warnings, and a replacement electrode order form.