The C 34-SR Halo is a semi rigid cardioid gooseneck microphone fitted with high brightness led halo ring and an open ended base mount, 480mm long in satin black. 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 using 8.5mm semi-rigid shaft. Phantom power adaptor required. Impedance of 200 Ohms. Termination is open ended. The total harmonic distortion (THD) at an operating level of 125dB less than 1%. 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.