AV-JEFE TCM141 Lapel Tie Clip Microphone _ Black Color, w Hirose Mini 4 Pin Connector for use with your Audio-Technica wireless systems Great Quality Lapel Mic !!! With Patented Slides-On Clip. Compatible with Audio-Technica Transmitters: ATW-T1801, ATW-T27, ATW-T31, ATW-T51, ATW-T201, ATW-T210, ATW-T210a, ATW-T310, ATW-T310b for use with 200 Series, 1100 Series, 1400 Series, 1800 Series, 2000 Series, 2000A Series, 3000 Series, 3000A Series NOT COMPATIBLE WITH Audio-Technica Transmitters: T35, T75, T211, T601, T701, 1000 Series, 1200 Series, 4000 Series, 5000 Series, 7000 Series Capsule Dimension: 1/4" in diameter; Clip Dimension: 1" in length (main body of clip). Cord: around 160cm (63" exclude the connector) ** Important: For wireless receivers & transmitters of other brands, please contact us to check the compatibility first, even their connectors look identical, since they may have different internal wiring.**