Abstract: Disclosed is a headset assembly for Bluetooth equipment. The headset assembly (H) for Bluetooth communication with mobile communication equipment includes an earphone body part (20) and a main body part (30) provided individually and connected to each other such that the earphone body part (20) and the main body part (30) can be hingedly rotated relative to each other about a hinge shaft (10), a carrying cap (50) selectively coupled to the earphone body part (20) or the main body part (30), the carrying cap (50) constituting a housing body together with the earphone body part (20) and the main body part (30), and a means mounted to the housing body for generating a switching signal to electrically open and close the headset assembly.