*Plug to the USB port diretly, keep warm by USB power
*Use Carbon-fibre as the heating materials, which can offer you the most comfortable temperature .
*Can be used on
On Knee
On Shoulder
On Back
On Abdomen
*Voltage: 5V
*Power: 3W
*Temperature: 36-42℃
*Materials: Polyester, Carbon-fiber
*Size: 80cm x 45cm
