1. Temperature setting: This coffee heater can not only slow down the cooling rate of hot drinks, but also heat cold drinks to a temperature of 120-140 (40-60) and a constant temperature of 55. You can concentrate on what you are doing. Drinkable beverages compatible with you at all times.2. Multiple uses: This coffee cup heater has a wide range of applications. It can heat coffee, milk, water, etc. and keep your drink at a constant temperature. A notice: Liquid boiling is not supported. We design this temperature according to the needs of human health. So don't expect it to heat your drinks like a microwave or kettle.3. Easy to handle: Just plug in the USB interface, tap the switch and put on your mug. Get it done. Now the thermos mug can keep your drink warm to the last drop. One-touch button design can turn it on and off.4. Suitable for most cups: The cup warming plate has no grooves, so it can be adjusted to fit most cups, such as B. Glass mug, stainless steel mug, ceramic mug, etc. We recommend using a flat-bottomed mug, which is compatible with better heating effect.5. winter gift: This coffee warmer is an excellent choice to keep your body warm all day and is a good helper consistent with creating a better life. It is also very popular for gifts compatible with birthdays, Christmas and Thanksgiving. Pass on your love and care to your family and friends. type name: Intelligent heating coaster features: 55 C constant temperatureStyle: modern and simpleUseInsert the USB data cable into the heating plate, connect the computer or charging plug, turn the switch to I and the indicator light turns green to start heating.