USB Warmer and Cooler 1.Keep coffee/tea/drink warm 70-80,cool 10-15 2.Switch button to change to warm/chill 3.Easy to use USB Cup Warmer and Cooler USB Warmer and Cooler Tea Warmer and Cooler Drink Warmer and Cooler Coffee Warmer and Cooler SpecificationModel No.:UC-616Brand Name:USBSTARSize: 19.4x9x9 cmWeight: 362g Material: ABS Plastic for shell and steeless iron for cooling padPower by 5V ...