U-voice Uvc863-sh4 Mini Lavalier Microphone for Shure Element: Electret Condenser Pattern: Omnidirectional Impedance: 1500 Ohm +/- 30%, Cord Length: 48 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) Package Included: Metal Cover Windscreen, Tie Clip