1. Adjustable temperature: Using high-tech frequency conversion heating elements the temperature of the coffee cup heater can be adjusted to 1-3 gears according to needs so that the coffee heating speed is different the heat preservation effect is different and it is safe and reliable.2. Auto On/Off: The tabletop coffee cup warmer has gravity sensing so after turning it on placing your cup on the surface of the cup warmer will start heating. Remove the cup and the cup heater will automatically turn off. Also it comes with a reminder to drink water.3. KEEP THE BEST TEMPERATURE: Whether the beverage is super hot or cold the office smart mug will keep your beverage temperature around 131F/55C which is the best temperature for people4. Small and Lightweight: A simple and beautiful cup warming plate making your hot coffee a more pleasant experience. It can use ceramic cups glass cups plastic bottles boxed beverages hot cocoa coffee milk water beverages etc. Make your life easier.5. It is easy to carry small in size and does not occupy much desk space. Easy to carry you can take it with you wherever you go. More convenient and safer to use. The perfect gift for Thanksgiving Christmas Birthday Valentine's Day and more.Note: This product does not include cups