oh hi Judith, sorry I didn't realize that was you. lol I won it on here. I fixed it so it would fit me, then never used it. It feels like a tens unit. I remember you are a nurse so you know what that is. I am too far gone for it I think but it might work for someone in better shape than me. I have too much fat around the middle and it is not a miracle worker. So I would have to admit that I never even tried it except to see if it would come on. I know I need to do the work. walking and bike riding. How have you been? Happy holidays to you. :)