Contents: Slendertone ReVive unit, 4 adhesive butterfly pads, 1 x 9 volt battery. Clinically demonstrated Electrical Muscle Stimulation technology gently and safely contracts and relaxes muscles to soothe and rejuvenate. Slendertone ReVive is a professional muscle conditioner which provides 6 different muscle conditioning and recovery programs designed to soothe and rejuvenate tired muscles. Each program can be used on 7 different body parts, including upper back, lower back, legs, and shoulders. Slendertone ReVive uses clinically demonstrated Electrical Muscle Stimulation (EMS) technology to gently and safely stimulate and relax your muscles. This same technology is used by physical therapists in hospitals and clinics across the US to rehabilitate and strengthen muscles. Slendertone ReVive is the only product which provides you with this professional technology at the touch of a button, allowing you to relax, revive and rejuvenate your muscles anytime, anywhere! 6 muscle recovery and relaxation programs; soothe tired muscles in 7 different body parts; easy to use and portable; professional technology at the touch of a button anytime anywhere; can reduce muscle tension and fatigue; leaves you feeling relaxed and revived.