Compatible with Shure Wireless Transmitter Models: L1, 11, LX1, SC1, U1, UC1, UT1, T1, ULX1, UR1, PGX * Professional vocal pickup condenser microphone * Double earhook with 4 pin mini XLR TA4F connector & 2pcs of windshields * Sweat and Dust-Proof Made Primarily for Indoor and Outdoor professionals * Designed for Use on Stage, Houses of Worship, Lecturers and Other Applications Requiring Minimum Microphone Visibility with hand-free Operation