Headworn microphone is intended for wireless use by performers, lecturers and others who require the highest quality voice pickup with maximum mobility. Its wide frequency response, low RF susceptibility and reliable operation at temperature and humidity extremes make the WCM16 suitable for virtually any vocal application. When used with Shure bodypack transmitters, the performance of the WCM16 closely resembles the finest conventional vocal microphones. The microphone's hypercardioid unidirectional pickup pattern provides maximum isolation from ambient noise and from adjacent sound sources such as musical instruments, loudspeakers and other performers. This permits higher gain before feedback without loss or masking of vocals.