The 2 Channel TENS Unit features 5 stimulation modes and adjustable pulse width, pulse rate and treatment timer. Its large LCD display shows the mode name and all settings, making it easy to check program details any time. Features a flip top cap over the amplitude adjustment knobs. Simple directions for use inside the cover. Belt clip. Low battery indicator. Comes in a hard-sided, protective, plastic case. Standard lead wires and pigtail style electrodes. Includes two lead wires, one pack (4) electrodes, manual and 9-volt battery. Federal law restricts this device to sale by or on the order of a physician or licensed practitioner.