General description This Coffee Mug Warmer is designed to keep your beverages warm with adjustable temperature settings. It features a concave plate design to prevent cups from slipping and overturning, making it suitable for various types of tableware including metal, ceramic, and glass. Ideal for use at home, in the office, or in coffee shops, this mug warmer ensures you always have a warm drink at hand. Technical specifications Temperature settings: Heating (167 °F/75°C), Constant temperature (149°F/65°C), Keep warm (131 °F/55°C) Automatic shut-off: 8 hours Suitable for cups with a bottom diameter of ≤ 76mm Material: High-quality ABS, ABS plating, and metal Dimensions: Lightweight and compact size Usage Touch the button once to start heating (red indicator light) Touch again for temperature preservation (blue indicator light) Touch a third time to shut off Other information Best gift choice for coffee lovers on special occasions