Bullet points:1, high-quality materials: with high-temperature resistant ABS coating, this product is explosion-proof and high-temperature resistant, heat insulation and not hot.2, three temperature levels: the temperature level is 55C-65C-75C. The default temperature is 55C when the unit is on, and press again to set the temperature to 65C. The third press adjusts the temperature to 75 C; And when you press further, it will be turned off.3, Safety design: The concave plate design can prevent the cup from accidentally slipping and tipping over, suitable for cups with a bottom diameter of less than about 76mm/2.99 inches.4, Intelligent power-off: 8 hours automatic, large power-off, it doesn't matter if you forget it ocnally. It will keep your cup warm and safe time.5, Smart Coaster: let your life be with warmth, take care of yourself, start with a cup of hot drink every morning. Description:This coffee warmer can automatically shut off after 8 hours. Its concave plate design can prevent the cup from accidentally falling and tilting; There is a high-temperature resistant ABS shell, it will not be hot, and the temperature control function is three-level. Specification: Name: USB Coffee Warmer Material: ABS + Metal + Electronic Components Size: About 130*117*23mm/5.12*4.61*0.91in Net Weight: About 120g Input Voltage: 5V Input Source: 2AM Rated Voltage: 10W Power SupplyUSB Power Range: 55C-65C-75CFith Countdown Function: 8 hours Auto Power OffHeating Time: It takes about 30 minutes to heat a cup of water at room temperature to 55 degrees Celsius. Note:1. Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.2. Due to manual measurement, there is a tolerance in the size of the product.