... , usb drink cooler, usb fan, usb gadgets, notebook cooler, usb warmer, usb ac, usb cooled, usb, cooler cup, usb card reader, usb bottle opener, notebook usb cooler, usb laptop cooler, usb cup warmer cooler, air cooler, wine cooler, water cooler, bottle cooler ... at 8°C2) Switch button to change to warm/chill, with LED indicator;3)Turns yellow when cold, be red when ...