HSC171 | Professional on-ear headset with condenser microphone
LD Systems LDS-WS100MH1 - Uni-directional Electret Condenser Headset Microphone - Black
Amazon.com: Shure PGA31 Headset Condenser Microphone with Cardioid Polar Pattern, Flexible Gooseneck, Foam Windscreen, and TA4F (TQG) Connector for use with Shure Wireless Systems (PGA31-TQG),Black : Musical Instruments