Product Name: Back Pain Relief Massage Belt/ Small Remote Control Electric Heating Vibrator Massager for Waist Power Type: Battery Function: Weight Loss & Slimming Product Description Unite the hot spring mud(rich in the trace elements like calcium,zinc,potass, sodium and so on) therapy with the electricity hot compress technology,the hot spring mud absorb the vapour in air by being heated to release the trace elements to person body directly.Healthy to stomach,abdomen,precaution of lumbago,warm your stomach.