In Club World (business class) they are def not BOSE and are def not any class make. They always seem a bit flimsy and cheap, although they may claim to work as noise reducing, they do not work in the same way as the BOSE on AA First.

I myself, use Etymotics earphones to block out engine noise.

If you want the finer details, and don't get any joy here, they will probably know everything about them to a scary degree on the BA board but they will probably also state that if it is old style CW then the tv won't be worth watching and if it is new style then it will probably not work