![This is my grandad's flying headset from when he was a test pilot. I know it's not at actual headphone per say, but I was curious if anyone knew what it terminates This is my grandad's flying headset from when he was a test pilot. I know it's not at actual headphone per say, but I was curious if anyone knew what it terminates](https://i.redd.it/xlcj2rb02a151.jpg)
This is my grandad's flying headset from when he was a test pilot. I know it's not at actual headphone per say, but I was curious if anyone knew what it terminates
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Amazon.com: UFQ A7 ANR Aviation Headset- 2021 Version with Metal Shaft More Durable -A7 Could be a Small Version Bxxx X-20 BUT More Comfortable Clear Communication Great Sound Quality for Music with
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