Coffee Mug Warmer TipsThis coffee mug warmer is designed to keep your coffee always at the right temperature (around 40-50C) instead of boiling liquid like a microwave. Not recommended for solid drinks, nor for heating cold drinks. 20W + 3 TEMPERATURE SETTINGS The 20W coffee cup warmer has 3 temperature levels 55-65--75 , transfers heat to your drink with thin flat cup, up to 40-50. Makes your hot drink hotter in the cold winter without cooling down as quickly. Perfect for office use. Suitable for cupsThe cup warmer is suitable for most cups of different materials (ceramic, glass, mugs, stainless steel and milk cartons), but it is recommended to use it with thin and thin cups. The plate has better heat transfer effect. Please use coffee and milk containers with a diameter of less than 8cm. Touch Switch 8 Auto Power OffGently press the LED screen to turn on or off. This coffee mug warmer automatically turns off after eight hours of inactivity, so forgetting to turn it off is no longer a problem. The bottom of the heater will stay below 60 degrees and has a thick silicone pad on the bottom, so there's no need to worry about it getting too hot and damaging the surface. . Easy to use and carryJust plug it in, turn it on and put the cup on it. The lightweight and compact 124 x 124 x 26mm drive is not only stylish but also practical and space-saving. Use it on desks and bedside tables, kitchens and more. BEST GIFT CHOICEThis coffee mug warmer keeps your drinks warm and is the warmest companion to everyday life, especially in winter. Whether it is New Year, Valentine's Day, Christmas, birthday or any other occasion, it is a great gift choice for family, partner or friends. We only sell thermos coasters, not other items pictured. Due to the differences between different monitors, the pictures may not reflect the actual color of the item. < p>Due to manual measurement, please allow slight size errors.