David Clark H10-40 Aviation Headset with M4 Microphone - Untested AS-IS
This is a used David Clark H10-40 aviation headset, complete with the M4 electret microphone. Headset is untested and being sold AS-IS for parts, repair, or possible use. David Clark H10-40 Aviation Headset w/ M4 Mic – Untested – Sold AS-IS.