{Self-heating Function} Our LUCKY mug warmer is equipped with an advanced technology temperature control chipset, which can maintain your cup within the optimal drinking temperature range of 113°F (45°C) all day long. Besides, the package contains a delicate ceramic cup with a capacity of 380 ml. You can enjoy coffee, tea, milk, hot cocoa or other beverages in this cup. Wireless Charging Function: mug warmer can not only heat coffee sets, but also charge mobile phones and Bluetooth headsets that support wireless charging. The maximum wireless charging output is 10W. {Automatic ON/OFF} The coffee cup heater uses a micro sensor to control the automatic switch. You only need to insert the power adapter into the base, then put the cup on the base, the heater will automatically turn on and heat up. If you want to stop heating, just lift the cup and it will be off. During this process, no buttons are needed. (Note: Please use the cup provided with us, otherwise it cannot be on.) {Spill-proof Design} The leak-proof design prevents you from accidentally falling over the cup and damaging the coaster, and makes cleaning easy and simple, just wipe it with a damp cloth. (Note: Do not use the dishwasher to clean the ceramic cup. There are some special materials on the bottom of the cup that will be damaged by the dishwasher. Please wipe it with a damp cloth.) {Best Gift Choice} Our products include mug warmer, coffee cup and micro USB cables with adapter. You don't need to purchase additional accessories to enjoy drinks. Excellent desk accessories, whether at home or in the workplace. For Christmas, birthdays or other important holidays, this is a great gift for important other people, parents, friends or any other relatives.