The Tiny T.E.N.S. Pain Management Solution uses electronic nerve stimulation to relieve aches and pains in the arms and legs, without a prescription. Simply attach this lightweight device to the affected area and turn it on. Transcutaneous Electrical Nerve Stimulation (T.E.N.S.) blocks the transmission of pain signals, so you feel relief immediately. Features 10 intensity levels, snap-style electrode pad and a reusable butterfly electrode.