EnerVive is the easiest way to improve muscle strength and performance. The EnerVive uses Electro-Muscle Stimulation (EMS) technology. Clinical studies have shown that EMS technology can increase muscle strength, improve muscle endurance and speed up muscle recovery after workouts or daily activities. Simply position GelPads on targeted muscles and select desired program. Features six programs targeted toward specific muscle functions. Programs range from 12 – 30 minutes each. Comes with belt clip, lead wires, travel pack, instruction manual and 9 volt battery.