... on baseboard and baseboard of leather case is for waterproof ,dustproof, shock absorption Specifications 1, executive standard: Bluetooth V2.0 2 Working ... 2.4G4, transmitting power: Class 2 5, operating voltage: 3.0-5.0 6, work current: <5.0MA 7, standby current: 2 ... on the keyboard, the power light and Bluetooth light will be on in three seconds , at this time the keyboard do not connect with any ...