This is an amplified noise canceling microphone designed for EXTREME HIGH NOISE ENVIRONMENTS such as open cockpits, crop dusters, warbirds and helicopters. 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-7, PA-7X, & PA-9 Microphones.
Foam Windscreen (PA-10) Included