Product Material: ABS + Glass Panel Color: White Size: 132 118 20mm / 5.2 4.6 0.8inch Voltage: 5V = 2A Rated Power: 10W Power Supply Mode: USB Package Included: 1 x Coffee Warmer Plate 1 x USB Power Cord 1 x User Manual 1. Adjustable Temperature: With the high-tech frequency conversion heating element, you can adjust the temperature of the coffee cup warmer from 1 to 3 gears according to your needs, so the coffee heating speed is different and the thermal protection works differently, which is safe and reliable.2. Auto On/Off: The desk coffee mug warmer adopts gravity induction. After turning on, place your mug on the surface of the mug warmer and it will heat up. Removing the mug will automatically turn off the teacup warmer. Also with drinking water reminder. 3. Keep Optimal Temperature: No matter the drink is very hot or cold, the smart mug warmer for office will keep the temperature of your drink at 55C (131F). This is the most suitable temperature for people. 4. Small and Light: A simple and sophisticated warmer plate makes sipping your hot coffee a more enjoyable experience. It can use ceramic mugs, glass mugs, plastic bottles, beverage packaging, cocoa, coffee, milk, water, beverages, etc. Convenient for your life. 5. ConvenientEasy to carry, small size, doesnt take up much desk space. Easy to carry, can be taken with you. Use more convenient and safer. Apply as the perfect gift for Thanksgiving, Christmas, Birthdays, Valentines Day and more.