The C 004EW-RF is a low profile through table boundary microphone with cardioid polar pattern in satin white. The cardioid Boundary Layer Condenser Microphones designed for a wide range of installed pro sound, conferencing or security situations. It is constructed from robust high quality brass with a low profile steel mesh top. 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 and is terminated with a male 3 pin XLR. Also includes rubber isolators to minimize the transfer of mechanical noise from table, ceiling or panel.