3 Temperature Settings Coffee Warmer: Our smart cup warmer can slow down the cooling speed of hot beverage; You can get a customized temperature by touching the Tempering Button of the electric mug warmer keeps the liquid temperature to 104/40 or131/55 or 149/65. Suitable for All Kinds of Flat Bottom Cups: Our cup warmer plate is suitable for Metal, Ceramic, Enamel, Tile, High-Temperature Plastic and etc. Tips: Use a mug with a thin-wall, flat-bottom will get the best warming performance. 4 Hours Automatic Shut-off: Our mug warmer specially designed with an"Shut OFF" function, It will shut off automatically after continually working 4 hours. Don't worry about forgetting to turn it off. Note: long press the "power button" for 2 secondsto turn it off. Safe DurableOur Coffee Mug Warmer is gathered with high-tech materials make the coffee warmer heat-resistant and explosion-proof. Coffee mug warmer is also waterproof, even splashing water on the heating plate by accident, there is no risk forsecurity concern,that makes cleaning a breeze. Multi-purpose Can be used in different occasions (home, office), used used to heat different beverages (water,coffee,milk,tea,soup,cocoa) And this is a gift that brings warmth, Suitable for lover, dad, mom and all your loved ones on Valentine's day,Thanksgiving and other special occasions to show you care.