Abstract: Disclosed is a sliding rail structure of a mobile power supply, comprising a cover body and a main body of the mobile power supply, a surface of the main body of the mobile power supply fitting with the cover body is recessed to form at least one Bluetooth headset holder, and a sliding connection assembly is connected between the cover body and the main body of the mobile power supply; the sliding connection assembly includes a first connection member, a second connection member and a reset member; after adopting the above structure, the user only needs to operate the Bluetooth headset with single hand when picking and placing it, when the cover body no longer blocks the Bluetooth headset holder, the Bluetooth headset can be placed in the Bluetooth headset holder and charged, or the Bluetooth headset can be picked up, which is convenient and quick to operate.

Abstract: Disclosed is a Bluetooth earphone charging device having a novel structure, comprising a housing. The housing is provided with two earphone holders for accommodating Bluetooth earphones; a charging interface is provided in the earphone holder; a PCB and a battery are provided in the housing; the battery is connected to the PCB, and the PCB is connected to the charging interface; the outside of the housing is connected to a sleeve in a detachable manner. The Bluetooth earphone charging device of the present invention is simple to use and convenient to carry because during use, Bluetooth earphones can be charged by simply putting the Bluetooth earphones in the earphone holders, where no additional earphone charging connection line is needed.