Feature:1. QUICK HEATING: This coffee heating pad quickly heats coffee, beverages, milk, tea and hot chocolate up to 55C, allowing you to enjoy a warm drink quickly.2. AUTOMATIC POWER OFF FUNCTION: For safety consideration, the cup heating pad is equipped with an automatic power off function, which will automatically turn off the heating function when the temperature reaches the set value, avoiding overheating and saving power.3. WHITE COLLAR OFFICE STUDENT USE: Designed for white collar office and student population, it provides warmth for busy work and study, so that you can enjoy a warm drink at any time and refresh your mind.4. FOR OFFICE WORKERS AND STUDENTS: Designed for office workers and students crowd, it provides warmth for busy work and study, allowing you to enjoy a warm drink at any time to refresh your mind.5. USB PORT USE: The heated coaster can be directly connected to a computer, mobile power supply or other USB devices through the USB port, easy to carry and use, no need for an additional power outlet.Specification:Item Type: Electric Mug WarmerMaterial: ABSWeight: Approx. 98g / 3.5ozInput Voltage: 5V2APower: 10WHeating Diameter: 8cm / 3.1inConstant Temperature: 55CProduct Size: Approx. 126x126mm / 5.0x5.0in.Package List:1 xElectric Mug Warmer1 x USB Data Cable1 x Instruction Manual