Shure BRH31M Lightweight Single-Sided Broadcast Dynamic Microphone Headset Closed-back, supra-aural design with ultra-lightweight construction Dynamic microphone delivers natural, highly intelligible vocal reproduction with cardioid polar pattern and frequency response optimized for communication in loud environments Adjustable headband with cushioned temple pad for comfortable, ergonomic fit Flexible boom microphone pivots 270 degrees for left or right side wear and precise positioning Single-side, fixed cable with unterminated ends (bare whip) enables connection to a variety of devices. Kevlar reinforced for increased durability