Abstract: An electret microphone having a head readily assembled within a housing in which an electrically conducting backplate and an air permeable filter member abut each other and form an electrical connection to an electrically conducting pin. The head of the microphone is mounted on a handle containing an electrical connector which engages the pin of the head forming an electrical connection. The handle also contains an amplifier with an F.E.T. transistor electrically connected to the connector, the amplifier having a radio frequency filter, surge filter, and being adapted to function with direct current potentials carried by the microphone cable of greatly varying magnitudes.