The bottom of the cup has built-in wireless charging receiving module and heating plate, which can be placed on for heating. Plugging in and put on the cup, there is on a green light, keep your beverage at 55 deg. Fast Charging and wide compatibility, The wireless charger is for mobile phones that can be wirelessly charged. Intelligent temperature,e control sensor, with temperature control chip, overheating protection. Auto-shutoff heating, protect the battery from overcharging, Intelligent identification of other things to stopping work, waterproof surface.