... lithium battery ITEM : rotation leather case bluetoth keyboard for ipad 2 bluetooth wireless keyboard wireless keyboard with rotation leather case Advantage1. Our Factory used ... , executive standard: Bluetooth V2.0 2 Working distance: 10 meters 3, modulation system: FHSS 2.4G4, transmitting ... 8, sleeping current: <200UA 9, charging current:> 100MA 10, standby time: 100days 11, Theory of working Time: ...