This is an amplified noise canceling microphone. This microphone replaces carbon & amplified dynamic microphones used in civilian applications.

This microphone requires a DC voltage supply of 9-28 volts. This voltage is standard with modern aviation equipment.

Direct Replacement for PA-5, PA-5X, 1142-22, M-4 & DC M-7/DC Microphones

Foam Windscreen (PA-10) Included.