1.usb mousepad and hand warmer 2,material,Plush,far-infrared carbon fiber,lycar 3 ... 4.Product Size22*20cm Nameusb mousepad and hand warmerInput Voltage, PC-USB/5V Input Power, 3.5WProduct material ,Plush, far-infrared ... 20CM Desciption1, safety insert the computer usb port to supply power , 5 v low voltage assure the safety of users.. ... style .make the user feel fashionable., usb mousepad and hand warmer