Color Black Brand - Quantity 1 Piece Material PU leather + silicone Powered By OthersMicro USB connector Compatible Brand LenovoSamsungSonyHuaweiOthers8"~9" Tablet PC w/ Micro USB connector Wireless or Wired Wired Bluetooth Version No Interface OthersMicro USB Charging Time - Hour Battery Number - Battery included or not No Supports System Win xpWin 2000Win 2008Win vistaWin7 32Win7 64Win8 32Android 2.xAndroid 4.x Other Features High qulity leather marterial with cushioned protection; Connects to your Tablet PC via Micro USBtyping as your laptop Packing List 1 x Keyboard case