Enjoy the convenience of a portable coffee warmer with this USB-powered heating pad. Ideal for use at your desk, this mug warmer keeps your drinks at the nice temperature. Simply insert into a USB port, place your ceramic cup on the pad, and your coffee or tea will stay warm. Features -Rated voltage: 220V -Rated frequency: 50Hz -Rated power: 16W -Constant temperature: 55 degree centigrade -Color:Assorted Color -Material:ABS, stainless steel -Size:14.00X12.50X1.00cm/5.50X4.91X0.39in -Fast heating performance: makes sure your milk or coffee reaches the nice temperature swiftly, can enjoy your drink without waiting -Usb powered: conveniently connects to any usb port, making it a nice addition to your desk setup -Adaptable design: coffee warmer works with various ceramic cups, providing a flexible and practical solution for keeping your drinks warm -Modern and stylish: the simple yet chic design makes it a stylish accessory that complements any desktop environment -Versatile applications: suitable for use at home, in the office, or on the go, offering warm beverages Package list: 2 warmers