The Deluxe Electronic Muscle Stimulator Comes complete with carrying case, 2 lead wires, 9-volt battery, 1 package of 4 pre-gelled electrodes and operating manual. Intensity control is adjustable from 0-80 mA, 500 ohm load. Pulse rate is adjustable from 2-150 Hz. Dual isolated channels. Pulse width is selectable: 100, 200, or 300 micro-seconds. Contraction time is adjustable from 2-30 seconds. Relaxation time is adjustable from 1-30 seconds. Ramp time is adjustable from 1-6 seconds. Metal belt clip. Intensity control is adjustable from 0-80 mA, 500 ohm load. 3 Year Limited Warranty.