USB Cooler & Warmer Bucket

Features:
1)Plug this USB cooler and warmer directly to the USB port of your computer, no driver and other power source are needed.
2)Simply place your drink on top of the pad and choose working method (cool or warm), everything will be OK soon.
3)Plug it to a USB port without any transformer, and the cold plate quickly feels cold.
4)Cold plate temperature: 0~15°C
5)Simply place anything on the cold plate and allow it variously to cool down or to stay cool.
6)Color available: white
7)Operated by 5V USB power