Usb Heater Tray Mug Pad Coaster Office Cup-pad. This Cup Warmer Mat is Made of High-quality Walnut Wood and Metal Materials, Heating Evenly, Safe and Durable to Use, Has a Natural Walnut Wood Grain and Smooth to Touch. It Powered by Any Devices with an Output 5V USB Port, Such As Your Computer, Desktop, Laptop, Tablet, Mobile Power and So On, Easy and Convenient. Great for Use at Home and Office, Keeping You Brew Warm on Cold Days.FEATURES: Made of High-quality Walnut Wood and Metal Materials, Heating Evenly, Safe and Durable to Use. Powered by Any Devices with Output 5V USB Port, Such As Your Computer, Desktop, Laptop, Tablet, Mobile Power and So On, Easy and Convenient. Lightweight and Compact Size, Easy to Carry and Suitable for Most Stainless Steel Cup, Feeding Bottle, Ceramic Cup, Glass Cup, Etc. Keep Your Coffee, Tea or Other Hot Beverage Warm Up to 80°, Do Not Worry About High Temperature and High Oxidation, Safe in Use. Great for Use at Home and Office, Keeping You Brew Warm on Cold Days. SPECIFICATIONS: Main Material: Wood + Metal Type: Bright Wooden Grain, Dark Wooden Grain,Black (Optional) Power: 5W Voltage: 5V Electric Current: 1000mA Max Working Temperature: 80° Wooden Grain Width: Approx. 16mm / 0.62inch Metal Plate Diameter: Approx. 75mm / 2.95inch Whole Diameter: Approx. 103mm / 4.05inch Weight: Approx. 108-109g INCLUDES:1 X Cup Warmer with USB Cable(Cups Are Not Included). We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.