Feature: 1. 3 LEVELS ADJUSTMENT: The Thermostat coaster has three levels of adjustment, 55℃, 65℃ and 75℃, so you can adjust the temperature according to your needs. 2. WITH SCREEN DISPLAY: Heating coaster with screen display, visualization, automatic power off after 8H, safer to use, with small light, convenient for you to use at night. 3. MULTIPURPOSE: Mug warmer can be used for most of the mugs, can heat coffee, tea, milk, hot chocolate, drinks, etc., also can heat candles. 4. EVEN HEATING: Electric coffee warmer can be heated evenly and at a constant temperature to keep your coffee at the best drinking temperature. 5. PERFECT GIFT: The cup warmer is a perfect gift to mother, father, lover, friends, family members on Christmas, Thanksgiving, Valentine's Day, birthday, anniversary. Specification: Item Type: Mug Warmer Material: ABS Fireproof Material, Aluminum Sheet Weight: Approx. 300g / 10.6oz Size: Approx. 142.2 x 125 x 32.7mm / 5.6 x 4.9 x 1.3in Rated Voltage: US Plug 110-220V Power: About 20W Adjustment: 55°C/65°C/75°C Sound Alert: Buzzer Drinking Reminder: 1 Hour Reminder Heating Mode: PTC Semiconductor Heating Constant Temperature Mode: NTC Detection Display: LED Digital Tube Display Switch Type: Touch Timing Mode: Automatic Power Off After 8H Color: Vintage Green. Package List: 1 x Mug Warmer Note: Use a thin walled, flat bottomed mug for the best heat retention