The Evertone Prosage Copper Massager is a percussion massager that is used to increase the blood flow. This massager is effective in relieving body soreness through deep and powerful massage. Features 3 massage heads with 4 different speeds meant to target different parts of the body. With appropriate amount of pressure, you are left with a healthier and more fit body. Equipped with 2,900 mAh rechargeable lithium-ion battery, it allows for an 8 hour use.