EPOS 502175 Training Adapter for EPOS IP headsets. 1x easy disconnect for the student (listen/ talk). Compatibility: EPOS headsets: CC 510, CC 515, CC 515 IP, CC 520, CC 520 IP, CC 530, CC 540, CC 550, CC 550 IP, SH 230, SH 230 IP, SH 230 IP USB, SH 250, SH 300, SH 330, SH 330 IP, SH 335, SH 350, SH 350 IP. Warranty: 2 years limited. 1x Easy Disconnect with mute switch for the coach (listen only). Application/usage: Headset. Black. Training cable. 2x easy disconnect to easy disconnect with mute switch for coaches, for training applications