Sidiou Group Warmer USB Coasters Vacuum Cup Pad USB Mini Fridge Refrigeration Hot and Cold Dual-Use Coasters Computer De

This device is for computer peripherals or car to heat or cool drinks via USB power cord, able to drink cold drinks in hot summer days or hot drinks in chilly winter, no matter inside the car or next to the computer, this device can provide you the excellent lifestyle.
USB mini fridge built in the heating and cooling function, work on any weather or season,use ABS engineering plastics, more durable.
USB Coaster is excellent for using at home, office and on board, using low voltage and universal USB power, it is safe and convenient. The appearance is concise, volume is small and exquisite, carry more convenient.
The cold hot amphibious, the four seasons all appropriate; USB ice coaster is a multifunctional coaster, with cooling and heating function, small size, is a high-end gifts.
USB mug warmer fully compatible with all the PC operating system, without the driver support, plug and play; compatible with USB1.1/2.0.