Intelect Portable Electrotherapy for symptomatic relief and management of chronic pain and acute post-surgical or post-trauma pain. Dual Independent Channels. Adjustable Timer. Adjustable Frequency and Pulse Duration parameters. Feature three modes: Burst, Normal and Modulation. Flip cover to protect top controls. Includes lead wires, 9-volt battery, Dura-Stick Self-Adhesive Electrodes and a convenient carrying case.