Rechargeable electronic muscle and abs stimulator. EMS (Electrical Muscle Stimulation) through current stimulation, directly sends a signal to muscles and promotes muscle movement. 1. Exercise muscles – exercise the abdominal muscles, while at rest. Uses eletric impulses to mimic crunches and sit-ups. 2. Thin – the role of the human muscles, stimulate the muscle nerve, the pulse of the movement of the signal to the muscles, to promote the muscle to complete the contraction movement, energy consumption, burning too much fat, so as to achieve weight loss. 3. Muscle strength – promotes muscle growth in a period of time for high-intensity training, arm strength, leg strength, and waist strength. The use of this product can maintain muscle activity so that the state of muscle energy remains full. Working Mode: 6 Different Massage Modes Contents: Abs Pad, Arm/Leg Pads, Controllers,10 Gel Pads, Instruction Manual Controllers require 2 AAA batteries (not included)