Rechargeable USB Powered Coffee Tea Cup Mug Warmer Automatic Stirring BrownFeatures:USB powered with built-in rechargeable Li battery， it can get recharged repeatedly.With automatic stirring function.Plug and Play， no need to install extra driver.Easy installation and easy operation.Keep your coffee， tea， or other beverage warm.Portable design， you can carry it around during travel.It's also suitable for home and office using.Specifications:Color: BrownVoltage: 3-5VPower: 3WNominal volume: 130mlCompatible with PC hardwareItem size: approx. 15 * 6.5 * 6.2cm / 5.9 * 2.6 * 2.4inItem weight: 172g / 6.1ozPackage size: 15.5 * 6.5 * 6.5cm / 6.1 * 2.6 * 2.6inPackage weight: 237g / 8.4ozPackage including:1 * USB Coffee Cup1 * USB Charging Cable1 * User Manual