1. 3 Gears Temperature Adjustment: Electric mug warmer has 3 gears temperature adjustment of 50 ℃ (122 ℉); 55 ℃ (131 ℉); 60 ℃ (140 ℉). With one button press, you can adjust the desired temperature to meet your different needs. 2. Automatic Shut-off Protection: When the cup has been heated for 8 hours without any operation, the cup warmer will automatically shut off and stop heating. 3. Even and Fast Heating: Large area of fast heating, temperature setting memory function, and the temperature at startup is set to the temperature at the last shutdown. 4. Various Cups Compatible: Applicable to all types of flat-bottomed water cups, such as ceramic cups, glass cups, milk bottles, stainless steel cups, boxed milk, cans, etc. 5. Lightweight and Portable: Ultra-thin design, exquisite and small, less space and more convenient to carry. This beverage warmer can be used as a mug warmer for desks, nightstands, kitchen or living room tables.