This dual channel device delivers all that is expected from an EMS unit for treating muscle injuries and accelerating recovery. Its features and specifications include EMS 5.0 Analog, Dual Channel, Pulse Width of 250 Microseconds, Pulse Rate of 5, 30, 100Hz, Pulse Ramp of 1, 3, 5 Seconds, Pulse Amplitude is adjustable from 0 - 80mA, 1-30 seconds Contraction Control, 1-45 seconds Relaxation Control, Asymmetrical Bi-Phasic Square Pulse, one Year Manufacturer Warranty. This comes with a stimulator, lead wires, one package of self-adhesive electrodes, nine-volt battery, hard plastic carrying case, instruction manual and private labeling (available for carrying case only).