The C 33-SR Halo is a semi rigid cardioid gooseneck microphone fitted with high brightness led halo ring and an open ended base mount, 300mm long in satin black. The Cardioid Condenser Microphone designed for use in conference halls, places of worship, broadcasting and paging systems. The Electret condenser gooseneck microphone has a cardioid polar pattern and is a slimline low profile design. The microphone is constructed from high quality brass construction using either an 8 mm semi-rigid shaft. requires phantom power adaptor. Impedance of 200 Ohms. Termination is open ended. The microphone head includes an integral concentric Halo illuminated by high brightness LED’s drawing 30mA max at 3.6 Volts (12 Volt versions optional). The LED’s will require a separate power source.