... -in lithium battery, mini USB charging port, ready to charge for the host machine.•3.Product size: 246 x 190 x ... :280*190*20 mm Weight:380gQTY: 20PCS/cartonCompatibilityAdjustable floor stand for tablet PC & ipad/ipad 2, movable, flexible, hands free, aluminum ... output power: 4Ω3W * 2 super slim 3 in 1 (Wireless Bluetooth Keyboard+Aluminum Case+iPad2 Stand) Aluminum bluetooth keyboard for iPad 2/3