Safe use: Features overheat protection. Package includes: A massage gun, four massage heads, a power charger and a manual. Versatile: The gun comes with four different massage heads to meet a variety of needs (see full details). Therapy: Get an electric massage gun. Designed for: Reducing muscle stiffness and pain, while increasing blood circulation. Rehabilitation: Handy to transport, so great for post-exercise fatigue, pain relief and inflammation reduction. Electric Massage Gun | Living Social