- Keep your favorite beverages at the perfect temperature with our electric mug heater. This innovative device helps slow down the cooling of hot drinks, ensuring your water, milk, or tea remains enjoyable for longer periods without becoming too hot. - Easily select and maintain your desired temperature ranging from 55 to 75 degrees Celsius with a simple touch of the temperature button. Enjoy your drinks just the way you like them. - The mug heater is equipped with an automatic shut-off feature that activates after 4 hours of use, providing peace of mind while ensuring it continues to retain heat for a while after being turned off. - Featuring a user-friendly LCD display, this coffee cup heater is designed for effortless operation, making it a smart addition to your kitchen or office. - With a spacious 3.15-inch heating plate, this heater is compatible with a variety of cup types. Please note: it is best used with thin-walled, flat-bottomed, or slightly concave-bottomed cups, such as stainless steel, ceramic, or glass. Avoid using plastic or double-layer insulated cups for optimal performance. - Use scenarios include enjoying a warm cup of coffee while working at your desk, keeping your tea at the ideal temperature during a leisurely afternoon, or savoring heated milk for your favorite recipes. - This electric mug heater is a practical solution for anyone who values a perfectly heated drink at home or in the office.