... drink warm at 50-60C and cool at 8C, USB cooler and warmerusb cooler and warmer, usb drink cooler, usb fan, usb gadgets, ... cooler, air cooler, wine cooler, water cooler, bottle cooler, oil coolerGreat quality and competitive price1) Keep tea/drink warm at 50-60°C and cool ... interface, add well isolating material, enhance cool and warm effct. 6) Color:red/black USB cooler and warmer (PM-UC-616)