... lithium batteryOperating System:Mac, Android 3.0 (Galaxy tab 10.1 8.9, Xoom), Windows 7,Vista, ... windows,Li-ion Battery* yingxin Keyboard for galaxy tab uses a 650mAh rechargeable lithium polymer battery that ... keyboard* The sleek ABS keys turn the galaxy tab and keyboard into one seamless unit. * Function key ... touch pad folio case.2. Compatible with galaxy tab 10.1’3.Keyboard Material: ABS 4. Folio ...