The C 33E/SR-RF-Halo is a semi rigid cardioid microphone fitted with high brightness LED halo and integral PPA, terminating in a Male 5 Pin XLR, 400mm long in satin black. The Cardioid Condenser Microphone designed for use in conference halls, places of worship, broadcasting and paging systems. High brightness LED halo gives easy visual indication of person talking. The Electret condenser gooseneck microphone has a cardioid polar pattern and slimline profile design. The microphone is constructed from high quality brass construction semi-rigid shaft with 8mm gooseneck.The microphone head includes an integral concentric Halo illuminated by high brightness LED’s drawing 30mA max at 12 Volts. The LED’s will require a separate 12 Volt DC power source. The microphone is fitted with a phantom power adaptor accepting 9 to 48 volts DC and has an impedance of 200 Ohms. The phantom power adaptor also includes filters which will eliminate all GSM frequencies from 800-1200 MHz and is terminated with a male 5 pin XLR.