Originally Posted by
Oldtiger
The noise cancelling headphones are only usable in first and business classes. The plug/socket having a three pin configuration (one pin being used to provide power to the internal noise cancelling circuit within the headset).
Not quite correct according to recent posts on here.
There are aircraft where the Y cabin is fitted with 3 pin sockets. This thread from earlier this year discusses it:
http://www.flyertalk.com/forum/emira...dphones-y.html