This easy-to-use, hand-held controller provides TENS therapy for fast pain relief by blocking pain signals from nerves to brain. It also provides Electrical Muscle Stimulation to enhance blood flow and strengthen muscles. Offers 6 different types of massage and 20 levels of intensity for soft or strong massages. Features an adjustable timer and rechargeable battery. Comes with 4 reusable massage pads (2 large and 2 small) that can be used on your back, shoulders, arms and legs, or used with the gloves, socks & shoes sold below. Imported. Measures 3 1/4" x 1" x 1 3/4".