Av-jefes Vl623/sh Headset Microphone for Shure Flexible and slim gooseneck boom for close talk and easy mic positioning RoHs and REACH Complied. Without Pb, Hg, Cd, Cr6+, PBB, PBDE. Bendable boom and adjustable wire frame for easy adjustability and perfect fit Polar Pattern: Omnidirectional Compatible with Shure Body-Pack Transmitter Models: T1, ULX1, UR1, PG1, PGX1, PGXD1, SLX1, BLX1, BLXD1. (Not Compatible with Mipro, Peavey, Beyer wireless microphone system)