For over 30 years, TENS technology has been used by physical therapists, pain doctors & other professionals so as to treat acute & chronic pain. Pain Mate is a portable & affordable TENS device. Clinically proven to provide relief from pain, it is simple to use & discreet. Just apply Pain Mate to the painful area, turn it on & gradually increase the intensity until you reach a comfortable level. Features Instant pain relief Safe & discreet 15 intensity levels 20 minute treatments with automatic shut-off Up to 50 uses before battery or gel pads need to be replaced No wires Portable device; carry case included Pulse rate 35 Hz. Pulse width 200μs (fixed) To use on Back pain Neck pain; place Pain Mate only on the back of the neck Joint pain; such as hip joint, knee joint & shoulder Managing musculoskeletal pain Your browser does not support the video tag.