The principle of the cold and warm magic cup is to use the air layer between the two layers in the cup for heat insulation, and the built-in heating device and sensor can automatically adjust the temperature. When the beverage needs to be heated, press the button and the heating device will start to work. After the sensor detects that the set temperature is reached, the heating device will automatically stop working.
When it is necessary to keep the temperature of the beverage, the built-in thermostat will start to work to keep the temperature unchanged.