1.5V DC,500MA 　　2.USB Port Clear Cable:1.5M 　　3.Dimensions:115*115*25mm 　　4.Heating area Temperature: about 65°C 　　Advantages: 　　1.Keep coffee/tea/drink warm at 40-50°C; 　 2.Suitable for any type of cup; 　　3.Keep coffee/tea warm for any time interval. 　　4.With translucent power indicating On/Off switch; 　　5.No risk of burn, with enclosure made of quality insulation material; 　　6.Easy installation, no driver required, Plug & Play