This Preowned David Clark H10-
The headset is fully guaranteed for 2 years, parts and labor. A new headset will cost you $300 plus. You can get this one for much less and it is guaranteed. It will work in all GA airplanes, Cessna's to Lear Jets.
I can install a 3.5mm jack for MP3 or Cell phone audio for an extra $15. When your MP3 or Cell phone is plugged in, the audio will go into the right speaker and
ATC in the Left speaker. Unplug your cable and ATC will be heard in both speakers. It is not stereo.
Add a Simi Flex boom to your headset for $40.00. It is a direct replacement for the Military Wire Boom.
If you are not completely happy you may return it for a full refund.
Why buy a used headset of unknown quality when you can get this one worry free!