An electric coffee mug warmer plate is designed to keeps your beverage at a constant temperature. This Coffee Mug Warmer can reduce the cooling speed of your hot drinks, which is maintained throughout the day. This product is designed only to keep hot coffee/tea/water/soup warm. It cannot heat or brew coffee/tea so kindly place only heated coffee/tea to keep it warm. It works by placing your mug on top of the plate, which warms up your drink neither hot nor cold and keeps it at a consistent temperature for a longer time. This mug warmer has an auto shut-off feature to ensure safety and conserve energy, and uses 16 watts of power. It's a handy tool for anyone who wants to keep their hot beverages warm for a longer period of time. It has a gravity switch so once the filled mug is kept on the plate it switches on and starts heating. Once the mug is taken away it switches off automatically. If you use it for heating water or milk, etc., It will take a long time. This warmer plate is not for heating, It will keep your tea/coffee warm for long time. You can enjoy your beverage while working or playing.