Features: 1Automatic Power Off Protection: After 8 hours of continuous work, it will automatically power off, so you don't have to worry too much about forgetting to shut down. 2Constant Temperature: Coffee mug warmer is a 55C smart constant temperature coaster that keeps the temperature at all times. Keep your coffee warm all day long with this stylish coffee warmer. 3Lightweight and Compact: This lightweight beverage warmer can be used as a mug warmer for desks, nightstands, kitchen or living room side tables. 4Easier to Use: Just plug in and connect the powe, then turn the coffee warmer on and place the cup on the top, and you can choose high or low temperature. 5Applications: This coffee cup warmer can use most flat bottom containers on it, such as ceramic cups, glasses, boxed milk and other flat bottom containers. Perfect for hot coffee, tea, hot cocoa, milk or even a hot cup of soup! Specification: Item Type: Coffee Mug WarmerMaterial: ABSGross Weight: 225g / 7.9ozRated Frequency: 60HzRated Power: 18WConstant Temperature: 55Product Size: 12x12x2.2cm / 4.7x4.7x0.9inPower Consumption: 0.3KWH per dayModes: The blue light is low temperature (about 50C), The red light is high temperature (about 60C) Package List: 1 x CupWarmer1 x Manual Note: The heating pad does not contain a mug, try to choose a mug with a flat bottom for more even heating.