Av-jefes Tcm141ll-sh4 Lavalier Microphone for Shure Element: Electret Condenser Pattern: Omnidirectional RoHs and REACH Complied. Without Pb, Hg, Cd, Cr6+, PBB, PBDE. Cord Length: 65 Inches 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)