4-pin cH-style connector Replacement headset compatible with Audio Technica bodypack transmitter. See below for compatability models. This replacement ear-hook headset does compatible with Audio Technica Body-Pack Transmitter Models: ATW-T3201, ATW-T5201, and ATW-T6001S Ultra-Light Weight, Easy Clip-on Style with cable clip RoHs and REACH Complied. Without Pb, Hg, Cd, Cr6 , PBB, PBDE. Designed for Live Sound Reinforcement, Presentations, Houses of Worship, Conferencing and Stage. Rannsgeer AVL630R-TAN-cH4P Mini Headset Microphone built in with cH-stylescrew down that compatible with Audio Technica Microphone System. Easy bendable boom for convenient use. Compatibility Body-Pack Transmitter Models as follow: ATW-T3201, ATW-T5201, and ATW-T6001S. This cH-style screw down headset is built in with Mini capsule diameter and the ultimate in low profile with high performance vocal pickup Omnidirectional condenser headset microphone. This headset Features include Sweat and Dust-Proof suitable for Indoor and Outdoor activities. Can also be used for on Stage, Houses of Worship, School Lecturers and Other Applications that Require Minimum Microphone Visibility with hand-free Operation. RoHs and REACH Complied. Without Pb, Hg, Cd, Cr6 , PBB, PBDE.