The AT889cW is a noise-cancelling condenser wireless microphone mounted in a headworn support system. It is designed for use by public speakers and others who require professional-quality vocal pickup with hands-free operation. The noise-cancelling microphone filters unwanted noise for clear, intelligible audio quality. The microphone includes 55" permanently attached miniature cable. Its free end terminates in a locking 4-pin connector for use with Audio Technica UniPak body-pack transmitters.