Name: USB CUP WARMER Mode: C-32BBrief Introduction:-Have four USB ports-Keep coffee/tea/drink warm at 50-60℃-Easy installation, no driver required, plug & play -Rated power: 2.5W-5V DC-Red LED indication when warmer is turned on.-Quality insulation material around the metal hot plate prevents burns.-USB powered, no batteries neededSize: 10*9.5*2cm Unit weight: 98.7gUnit packing weight: 146.5g