Bose replacement mic windscreen for Bose A20 and Bose X®
This foam replacement microphone screen reduces ambient noise and helps keep wind pressure from activating the microphone. Screen slides easily over headset microphones and is secured with supplied rubber grommet.
You most likely have the electret microphone if it is the Bluetooth model. If the headset is a single plug style designed for use in military applications, it is dynamic. If it is used in general aviation aircraft it is electret.