The wireless slimming belt with a built-in large capacity battery, it can work for about 200 minutes after a full charge (charging time: about 150 minutes) so that you can use it anywhere when you need. The vibration and heating function can improve your blood circulation, enhance your metabolism and provide healthier bowel movement. It can also help restore your body shape after childbirth. You can put our slimming belt on the area that you would like to focus including your abdomen, shoulders, thighs, waist and more. The Shell is made with top quality ABS material, durable and easy to clean. The waist belt inner lining is made of mesh polyester fiber, which is comfortable, breathable and sweat-absorbent.