1) Keep coffee/tea/drink warm 2) Switch button to change to warm/chill, with LED indicator 1) Keep coffee/tea/drink warm 60-70°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) Ion polishing technology is. Cola Can USB Fridge