The C 003E-RF is a low profile through table boundary microphone with omnidirectional polar pattern in satin black. It's Designed for simple installion with professional sound response. For use in conferencing or security situations. The microphone is constructed from robust high quality brass with low profile steel mesh top. It is terminated with a male 3 Pin XLR. The microphone is fitted with a Phantom Power Adaptor accepting 9 to 48 volts DC. The Phantom power adaptor also includes filters which will eliminate all GSM frequencies from 800-1200 MHz. Total Harmonic Distortion (THD) at an operating level of 125dB is less than 1%.The microphone also includes rubber isolators to minimise the transfer of mechanical noise from table, ceiling or panel. Finish: Low reflective Black.