Description This product is a novel and durable cup warmer made of high quality materials. With a clean look, this product is the perfect accessory for a drink at home and in the office. Heated coasters keep your mugs warm so you can spend time enjoying a cup of coffee. Features Material: Tempered Glass, Ceramic - Made of smooth and safe material, light and durable. The large opening and smooth surface are easy to clean and ideal for everyday use. Handle design, you can hold the cup conveniently. Let you drink hot coffee, tea, beverages, water anytime and enjoy the warmth of hot drinks. Just the right size, it won't take up more space on your desk. Specifications - Power Rating: 16W Power supply: USB Voltage: 220V Cable length: about 70 cm