Features safety amplitude cap and asymmetrical, biphasic, square pulse wave form. Offers two, controllable output channels. Three modes: synchronous, constant and alternation. Timer features 30- and 60-minute programs of fixed duration, and one continuous. Adjustable 0-80 mA peak into 500 ohm load each channel, constant current pulse amplitude. 250 microsecond fixed pulse width. 2 Hz - 120 Hz adjustable pulse rate. ON Ramp adjustable 1 - 8 seconds. Cycle ON and OFF Times adjustable 1 - 30 seconds. Includes unit; lead wires; four ReliaMed electrodes; 9-volt battery; hard, plastic carrying case; and operation manual. One-year warranty on unit