Does your hot drink getting cool or cold drink getting warm while you drink it slowly? USB Can Cooler And Warmer can help you to solve such problem. This cool USB gadget combining with both chilling and warming technology, you can keep your beverage chilled or warmed and stay at your computer for longer time. For other cooler or warmer, we have USB Mini Fridge, USB Chiller And Warmer, USB Cafe Pad!