Color White + Deep Pink Model HK-3910 Material Aluminum alloy Quantity 1 Set Interface USB 2.0 Wireless or Wired 2.4G Wireless Bluetooth Version No Compatible Brand APPLEDellHPToshibaAcerLenovoSamsungSonyIBMAsusThinkpad Tracking Method OthersLight sensor Back-lit No Powered By AAA Battery Battery included or not Yes Charging Time N/A Hour Waterproof No Supports System Win xpWin 2000Win 2008Win vistaWin7 32Win7 64Win8 32Win8 64 Other Features Keys: 78 Packing List 1 x Wireless keyboard 1 x Wireless mouse 1 x USB receiver (in the mouse) 1 x Keyboard protector 4 x AAA batteries