Material: PU Integrated smart chip: Built-in smart chip can identify different mobile phone charging architecture and match the right current for different mobile phones for higher charging efficiency, the smart chip can sensitively sense the temperature of the coils for more safety against fire and explosion Multiple protections: Built-in multiple protections such as over voltage protection, under voltage protection, over current protection, over temperature protection, etc., so that you can work safely while charging your phone. With an ergonomic design, it gives enough support to your wrist, which can effectively reduce the pressure on your wrist and prevent the bones of your wrist from deforming. It is the perfect companion for your office and games. Recommendation: the thickness of the phone case is no more than 6MM, and the sensing distance of the mouse pad is no more than 6MMComfortable hand feeling: made of high quality PU, fine texture, smooth hand feeling, non-slip wear-resistant easy to clean, can be bent and folded at will, occupy little space