The C 301E-RF is a rigid stem cardioid microphone with a knuckle joint with an integral PPA terminating in a Male 3 Pin XLR with 180mm long in satin black. The Cardioid Condenser Microphones designed for use in conference halls, places of worship, broadcasting and paging systems. The microphone is constructed from high quality brass construction and is fitted with a knuckle joint allowing horizontal rotation and vertical adjustment. The microphone is fitted with a phantom power adapter accepting 9 to 48 volts DC and has an impedance of 200 Ohms. The phantom power adapter also includes filters which eliminate all GSM frequencies from 800-1200 MHz and is terminated with a male 3 pin XLR.