Noise canceling headphones are always left on airplanes.
They need a space for owner info so they can be returned by good samaritans or ID’d by lost & found.
[Mod Edit]: Title Modified to Enhance Search Clarity.
you could always engrave your information on them or make a tag…
No kidding
Or this could be incorporated into the design that NO OTHER noise canceling headphone has.
These things are lost on airplanes and never returned as they have no owner identifying info on them.
Must be an interesting job as an airplane cleaner.