TENS (Transcutaneous Electrical Nerve Stimulation) is a non-invasive, drug free method of controlling pain by the transmission of electrical stimulation to the body’s nerve or muscle fibers through the skin. Pain relief is achieved by suppressing the transmission of pain in nerves (Gate Control Theory) and increasing the discharge of the body’s endorphins, which reduces the sensitivity to pain in the central nervous system (Opiate Release Theory). WiTouch Pro‘s exclusive and patented waveform incorporates BOTH clinical theories of TENS to provide immediate and long-lasting pain relief. The WiTouch Pro provides a safe, easy to apply, medically approved pain management system for self-treatment when needed. The WiTouch Pro is perfect for those with chronic low back pain.