USB powered, no batteries needed.
Plug and Play, no need to install extra driver.
Easy installation and easy operation.
Keep your hot coffee, tea, or other beverage warm, temperature range: 40℃ to 80℃.
Perfect for home and office using.
Power: directly USB power
Working voltage: 5V
Item size: approx. 11 11 2.5cm / 4.3 4.3 1in
Item weight: 84g / 2.96oz
Package size: 19 13.5 3cm / 7.5 5.3 1.2in
Package weight: 112g / 3.95oz
1 * USB Cup Warmer