The PRO-fit is designed to soothe chronic muscle and joint pain anywhere in the body. This product utilizes Transcutaneous Electrical Nerve Stimulation (TENS) technology, which provides you with a natural pain relief solution. TENS reduces the transmission of pain signals to the spinal cord and brain while stimulating the body to produce natural pain relievers. Easily controlled via our app, or directly on the device, these contouring pads allow for discreet and convenient muscle relief. Electrode therapy is a safe treatment method for pain that’s been in use for over 30 years by medical professionals, physical therapists, chiropractors, and now: YOU.