Shure BRH 441M-LC single-sided headset - over-ear, closed back design, dynamic, foldable, dynamic mic with cardioid polar pattern, adjustable, pivoting microphone boom, can be positioned left or right side, auto-mute function if microphone boom is raised vertically, one sided cable run, sensitivity mic: -66.5 dBV/PA (0.47 minimum), headphone: 101 dBV/Pa, frequency response: 50 - 15000 Hz, weight: 343 g, Attention: cable not included! optional cable 605447