The C 440E is a twin mount back electret microphone and Each microphone has Individually adjustable angled solid shafts. Inline phantom power adaptor contains a switchable 10 dB pad and bass cut filter, 450mm long in satin black. It is designed for us in places of worship, conferencing, broadcasting and other places requiring twin microphone for backup / fail safe operation. The twin mount back electret condenser microphone with a cardioid polar pattern. Constructed from high quality brass each microphone is fixed to solid shafts which can be individually adjusted 180 degrees for correct vertical angle. Each microphone is separately powered and contains two Phantom power adaptors requiring 9 – 48 Volts dc. The PPA contains a switchable 10 dB pad and bass cut filter(-4dB per octave at 400 Hz to –6dB per octave at 100 Hz.