1) Keep coffee/tea/drink warm 70-80°C,cool 10-15°C. 2) Switch button to change to warm/chill, with LED indicator;Turns yellow when cold, be red when warm. 3) The Fridge can hold a can of Coke/Pepsi Cola. 4) Internal size is:125(H)*67.5mm(Dia.) 5) Ion polishing technology is introduced to metal plate, fully improve interface, add well isolating material, enhance cool and warm effct. Specification: 1) Size: 20x10x10cm 2) Weight: 400g. 3) Material: ABS Plastic for shell and steelless iron for cooling pad. 4) Powered by 5V 500mA via USB from computer. 5) With 100cm of USB cable. 6) Standard Color: Red.