... appearance, light weight, built-in lithium battery, mini USB charging port, ready to charge for the host machine.•3.Product size: ... floor stand for tablet PC & ipad/ipad 2, movable, flexible, hands free, aluminum mount holder Working parameter 1.The battery nominal capacity ... : 3.7V/600MAH2. Charge current: MAX: 500MA3. Charging time :2-3 hours4. Audio ...