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 ? 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