While flying on a QR 240 flight to TRV in J class, the purser allowed me to keep the QR provided headphones for watching IFE.
My questions are as follows:
1. Since my plane was an A321, are the headphones only good for A321 IFE's or can they be good for all QR fleets?
2. Since I have not flown as much as many others, I'm not sure if these headphones are good for use on other airlines and their fleets. Is there such a thing as a universal headphone? When I requested to keep the headphones, my thinking was that I can use them on any airline, regardless of plane type, but need verification of this?
3. Can the BOSE headphones work on IFE's or is it purely for noise-canceling?