... .wireless bluetooth outdoor speakers 2.version:3.0 3.range:within 10 meters 4.CE, ... ST-BS012.Version:Bluetooth V2.1+EDR 3.Range: 10M 4.Battery: 3.7 V 600 mAh,rechargeable 5. ... Charge Time: 2-3 hours6.Standby time: About 6 hours (battery saturation state) 7:Frequency Range ... AD2P, ACVRP Bluetooth protocol computer, USB Bluetooth Adapter, Cell Phone, IPAD, MID, etc Photo: 2013 Newest cheap ...