FDA cleared OTC HealthmateForever YK15AB TENS unit with 4 outputs, apply 8 pads at the same time, 15 modes Handheld Electrotherapy device | Electronic Pulse Massager for Electrotherapy Pain Management -- Pain Relief Therapy : Chosen by Sufferers of Tennis Elbow, Carpal Tunnel Syndrome, Arthritis, Bursitis, Tendonitis, Plantar Fasciitis, Sciatica, Back Pain, Fibromyalgia, Shin Splints, Neuropathy and other Inflammation Ailments Patent No. USD723178S