The C 011EN-RF is a low profile through table boundary layer microphone with omnidirectional polar pattern in satin nickel. Used For boardrooms, conferencing, court rooms and other such venues. The microphone is made from a robust high quality brass construction with low profile brass top. It is terminated with a male 3 Pin XLR. The microphone is fitted with a Phantom Power Adaptor accepting 9 to 48 volts DC. The Phantom power adaptor also includes filters which will eliminate all GSM frequencies from 800-1200 GHz.