The C 012E-RF low profile through table boundary layer microphone with cardioid polar pattern in satin black. It is used for boardrooms,conferencing,court rooms and other such venues. The condenser microphone design is for a through desk/ceiling/panel mount boundary layer type with a cardioid polar pattern. The microphone is made of a robust high quality brass construction with a low profile robust brass top. It is terminated with a male 3 Pin XLR. The microphone is powered by a 9 to 48 volts phantom power adaptor which also includes filters that will eliminate all GSM frequencies from 800-1200 MHz.