Features:
1) Use easily: directly insert the plug to  the USB port without transformer.
2) Open-end design allows your fingers  moving easily
3) Each glove use carbon-fiber as  heating materials, can keep your  hands warm when you use computer  working in winter.
4) Release far infrared ray when  operating, protect the hands.
5) Safe 5V USB power source

Specifications: 
USB heating glove
voltage : 5V
power:4W
Temperature: 32--45℃