Helps rehabilitate and strengthen your muscles. An all-natural way to promote muscle recovery. Muscle conditioner uses the same electrical muscle stimulation (ems) technology used by doctors and physical therapists to rehabilitate and strengthen muscles. It safely engages the nerves that surround your muscles, gently contracting and relaxing the muscles to ease tension, stress and tightness. With 6 different recovery and relaxation programs. It's a convenient and easy way to soothe tired muscles. Try it on your back, shoulders, abs, thighs, calves and arms. Includes two electrode pads and lead wires.