GICHA New Fashion USB Heated Warmer Coffee Cup Automatic Stirring for Office Home * 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.