Color Black Brand N/A Quantity 1 Piece Material PU leather Powered By Built-in Battery Compatible Brand APPLE MACBOOKDellHPToshibaAcerLenovoSamsungMSISonyIBMAsusThinkpadHuaweiGoogleOthersLenovo Wireless or Wired Bluetooth Bluetooth Version V3.0 Keys 78 Operating Range 8 m Charging Time 4-5 Hour Battery Capacity 450 mAh Battery Number No Battery included or not No Supports System Win xpWin 2000Win 2008Win vistaWin7 32Win7 64Win8 32Win8 64MAC OS XIOSLinuxAndroid 4.x Other Features Ergonomics: support. Power supply: built-in rechargeable li-ion battery. Li-ion battery: 450mAh. Working temperature: -10~+55 degree celsius. With power switch. USB charging function. Charging time: 4-5 hours(first charging should charge for 8 hours). Working time: 45 hours.Fn combination multimedia capabilities Packing List 1 x Case 1 x Bluetooth 1 x Keyboard 1 x Cable (100cm)