The non smartass answer is that you can't being your own equipment into a 121 cockpit. Everything in the jet has to be FAA approved in the ops specs and company manuals. (And before you reply, don't even tell me about headsets and show more ignorance. You know what I mean.)

If you were a real airline pilot, you'd know that. Go away and stop embarrassing yourself with all of your inane "news" stories and commentary about things you don't understand here.