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Low to High Impedance Adapter - MyPilotStore.com
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Amazon.com: Saipomor QC45 Adapter Airplane Audio Stereo Jack Plugs for QuietComfort 2 QC3 QC15 QC25 QC35II QC35 SoundLink SoundLinkII AE2 AE2i AE2W and More Headset with 3.5mm Golden Plated Jack Plugs :
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Amazon.com: Saipomor QC45 Adapter Airplane Audio Stereo Jack Plugs for QuietComfort 2 QC3 QC15 QC25 QC35II QC35 SoundLink SoundLinkII AE2 AE2i AE2W and More Headset with 3.5mm Golden Plated Jack Plugs :
Bose A20® / A30® 6-Pin To General Aviation Headset Adapter - PA-89/A20 | Aircraft Spruce
Bose A20 Headset - No Bluetooth - Banyan Pilot Shop
Bose A20® ANR Aviation Headset - 6 Pin Lemo Plug - Coiled Cord with Bluetooth | Aircraft Spruce