1、3 Temperature Settings: 3 temperature regulation 50℃(122℉), 55℃(131℉), 60℃(140℉). The cup warmer can be operated by one button to adjust the desired temperature to meet your various needs. 2、Automatic Power Off Protection: When the cup is heated for 8 hours without any operation, the mug warmer will automatically power off and stop heating. 3、For Various Cup: Coffee warmer is applicable to all kinds of flat bottomed cups, such as ceramic cup, glass, feeding bottle, stainless steel cup, boxed milk, and cans. 4、Temperature Setting Memory Function: The temperature at startup is set to the humidity at the time of last shutdown. 5、Uniform and Fast Heating: Mug warmer for desk has uniform heating and fast heating. Fast heating in large area, warm around. 6、Lightweight and Portable: The coffee warmer is more portable and ultra thin, delicate and compact, occupying no space and more convenient to carry.