Coffee Mug Warmer For Desk, USB Coffee Cup Warmer for Coffee, Tea, Milk, or Other Beverages, Heating Plate for Keeping Drinks Warm (Black) Features: Modern design: Made of walnut wood and metal materials, provides uniform heating, safe and easy to use, and complements modern office environments. USB powered: Conveniently powered by any device with a 5V USB output, such as computers, laptops, tablets, or power banks. Portable design: Lightweight and compact, easy to carry, compatible with most stainless steel cups, baby bottles, ceramic cups, and glass cups. Keep drinks warm: Maintains beverage temperature below 80°C, preventing overheating and ensuring safe usage. Wide application: Ideal for home or office use, helping keep beverages warm in cold conditions. Product Details: Material: Wood + metal Color: Black Power: 5W Voltage: 5V Current: 1000mA Maximum working temperature: 80°C Size: Approx. 16mm / 0.62in Sheet metal diameter: Approx. 75mm / 2.95in Outer diameter: Approx. 103mm / 4.05in Weight: Approx. 108–109 grams Package Included: 1 x Cup warmer with USB cable (cup not included)