Gravity sensing- After plug in power, put cups on the plates and it will work. When you don't want to heat it, it will maintain a constant temperature of 55 degrees. Safe and Environmentally Friendly: Uniform insulation, cup heater can prevent coffee or water leakage, when the power is off, can be placed in the heating zone to prevent the hand. Mutiple Cups Available:such as metal, ceramic, enamel, tile, glassware; just do not fit for plastic material cups and vacuum cups.
