Coffee Mug Warmer. The intelligent heating warmer plate coffee warmer allows you to maintain a constant temperature (131 dregee Fahrenheit / 55 degree centigrade) throughout the day and enjoy hot coffee, tea,drink, etc. at any time in winter. Coffee Cup Warmer. Stylish simplicity design, cute Mug Warmer. Auto on/off, the warmer auto activates when you place your mug on it and shuts off when the mug is removed. the heating process takes 10-20 minutes, so please be patient. Perfect Gift. it will make a great gift for valentine’s Day, Christmas and New Year, or any other special holiday for your lover, mom, dad, wife, husband and all of your loved ones.