Bluetooth earphone structure

The utility model discloses a Bluetooth earphone structure, and relates to the technical field of Bluetooth earphones. The fixing device comprises a first connecting end, a second connecting end and a fixing end, the second connecting end is arranged on one side of the first connecting end, the fixing end is welded to one surface of the second connecting end, a sliding plate is welded to one surface of the first connecting end, a sliding groove is formed in one surface of the fixing end, and one end of the sliding plate extends into the sliding groove. The circumferential side face of the sliding plate is in sliding fit with the sliding groove, a plurality of clamping holes are formed in the upper surface of the sliding plate, a clamping rod is embedded in one end of the upper surface of the fixed end, and one end of the clamping rod penetrates through the upper surface of the fixed end. Through the structure of the fixed end and the sliding plate, the distance between the first connecting end and the second