The PPA-RF is 9 to 48 volt phantom power adaptor for electret condenser microphones fitted with a 3 pin male Tini Q (mini XLR) connector and a 3 pin male XLR. PPA-RF includes filters which will eliminate all GSM frequencies from 800 MHz - 1.2 GHz. The PPA accepts 9 to 48 volts DC. The circuitry utilises the latest surface mount technology to ensure consistent high specifications and reliability.