The USB heat pad is mainly referred to as the heat pad that heated by the power of a USB port electricity. It is also known as a USB heat film, heating film, electric heat film. They are normally flexible.
The raw base materials of the USB heat pad are using environmentally friendly pet materials, and the heating resistance can be metal, silver paste, carbon paste or carbon fiber, etc. It is is also normally with high-temperature resistant adhesive stickers. The electrical voltage normally 5V, and the heating temperature can achieve to 40℃ ~ 50 ℃, which are popularly used in USB mouse pad heating sheet, USB slippers heating sheet, USB gloves heating sheet, automobile heating seat cushion, etc.