AccuRelief Remote Wireless Pad Refill Supply Kit is designed to work with the AccuRelief Remote Wireless TENS to provide fast and effective pain releif where you need it the most. Easy and convenient, there no more wires to worry about this these wireless replacement electrode pads. TENS stands for Transcutaneous Electrical Nerve Stimulation. It works by administering tiny electrical impulses sent to the nerves through the skin to modify pain perception. Since the nerve pathways are blocked, pain signals are kept from reaching the brain. This stimulation causes an increase in blood circulation and endorphin production, which are both essential components of the healing process.