... wrinkles. Can massage parts: head, neck, shoulders, back, abdomen, hands, feet, legs, face can be used.specification: 1.Work: AAA battery2 ... : ABS4.Function: Work accord the AAA battery,use the three foot keep the body in massager,massage the body,handle,back ... children.7.The technical,we use the welding technical. Three foot massager ,mini Electric massagers