Twice the battery life of a typical analogue device * Package Includes: Device batteries lead wires 1 pack of 4 electrodes carrying case and users manual * Dual channel device with 3 modes of operations(B N and M) * Pulse width pulse amplitude and timer are all adjustable * It is also equipped with a 30 60 90 minute timer and has a protective cover over the controls * Nerve stimulator is a device used to treat chronic pain and pain associated with active or post- traumatic injury unresponsive to other standard pain therapies * 7 pulses per burst 2 bursts per second 100Hz fixed frequency * Pulse width is automatically varied in a cyclic pattern over an interval of nominally 4.0 Seconds * Continuous output with adjustable amplitude pulse rate pulse width * HCPCS Code : E0720/ E0730 * 1 year warranty on the device