Premium Material: Made of high-temperature ABS, heat conduction is very fast, the temperature can reach 90-100 degrees . Plug and Play: USB powered, you can comfortably plug in any USB compatible devices, such as laptops, travel chargers or other USB devices. Low Power Consumption: With low power consumption, energy saving and impervious function, you can save your electricity bill, so you can use it with confidence. Smart Switch: The cup is automatically heated when you put it on, and the cup is automatically powered off when you pick it up. Multiple protections, understand your enjoyment. Suitable for: The insulated coaster is specially designed to maintain the comfort of the drink, which is very suitable for coffee lovers or office computer workers. : Name: Constant Temperature Coaster Dimensions: heated diameter: about 85mm/3.35 in, USB cable length about 1.2m/47.24 in Rated voltage: 5V Rated power: 10W Power supply: USB Colour: White Material: High Temperature Plastic + Aluminum Plate Size: 100 x 100 x 16mm Package Contents: 1 x Cup Heater Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.