Have you ever experienced an interruption of so many times during your daily life your coffee always gets cold? There's disappointing than a cup of coffee that's gone cold. But who has the time to keep reheating it again and again? Now, you don't have to, with the coffee warmer you can enjoy it at your preferred temperature all day long at work or home. Features - Material: Aluminum alloy, plastic. - Size: About 12.00X12.00X2.00cm/4.72X4.72X0.79inch. - Keep the mug by your side constantly at the temperatures you like. - Don’t let your drinks so quickly. Keep your beverage stays in the best temperature for drinking. - Put the mug on , warmer plate will auto work, and remove the coffee mug it will turn off. - Whether it is scented tea, honey, coffee, tea, etc., it is equally suitable. - Sip at warm or hot coffee all day, no longer worried about being interrupted by busy work. Specification - Rate power: 18 W. - Rated voltage: 220 V. - Rated frequency: 50 HZ. Package list: 1 x heating coaster 1 x USB cable