Foot & Leg Elevator Wedge 20 X 25 X 8 Poly Foam White Walkers Two Button Includes Device batteries lead wires 01804 Includes Device batteries lead wires 1 4pack of electrodes carrying case and users manual * Channel: Dual Channels Isolated between channel * Output Maximum 130 mA (peak value) across 500 Ohm load * Pulse Width From:50 ÊS to 250 ÊS adjustable * Pulse Rate:2 Hz to 150 Hz Adjustable * Wave Form:Symmetrical bi phasic rectangular Monophasic rectangular * Operates on 2 AA batteries (included) * Timer 1530 mm Minimum Height to Attachment Point Polyurethane foam elevates the legs * Helps reduce swelling in the feet and legs by improving circulation and blood flow in lower extremites * Eases strain on the back and lower body * Relieves pain associated with varicose veins * Removable white washable cover