The new ergonomically designed device has the same parameters as its predecessor; adjustable pulse rate and pulse width, and has three modes of operation; constant, width modulation, and burst. This TENS unit with timer is perfect for those seeking timed sessions. The new design of the device incorporates a sliding amplitude control cover for safety, and a permanently attached 9 volt battery cover to prevent loss. The 9 volt battery compartment has been redesigned for simple insertion and removal of the battery. To provide comfort while wearing, the belt clip has been positioned horizontally. The device was designed to be easy to use and economically priced for the patient.Each package contains: 2 pairs of lead wires. 4 electrodes. 1 9V battery. 1 manual. Compatible leadwire: L00013
