YPA ME2-C4T HEADSET EARSET MIC FOR Audio Technica Wireless Microphones Single-Ear For vocal, speech, dance and sport applications, for instrumental artists and solo entertainers High-quality microphone capsule with omnidirectional polar pattern. Ear hook for wearing right or left.Adjustable and bendable microphone arm with cable socket. Connector safely Hirose 4 pin type plus configuration for pocket transmitter (tested on T310) Compatible with Audio Technica ATW-T27/T31/T51/T200/T210/T300/T310 and 1100/1400/2000/3000 series