【ATTENTION!】Recently we checked some customers’ purchasing experiences, and we found that there are some problems about our item like “The battery is not working””It cannot charge””The product is not heating up”.If you meet any problems when using this shoulder brace wrap, Therefore, to improve the product quality, we want to collect more customer experiences, please ask our customer service team for help at the first time. We will try our best to solve the problems for you in 24hours. Please give us a chance to help you solve the problems.