"Jim Phoenix" wrote in message ...
Here ya go:
(bottom line is, it's up to the operator)
single battery.

I fly twice a week. The Southwest Airlines flight attendants have been very
inconsistent. Some ignore the headphones, some make sure I'm not listening
to anything but allow me to keep them turned on, others allow me to wear
them as long as I turn the power switch to "off", others make me take them
off entirely, and some of them enjoy making it an audition for the
Niedermeyer All-Stars.

Is there a case I can make for keeping them on?

http://www1.faa.gov/avr/afs/acs/91-21_1.txt

(6) Prohibiting the operation of any portable
electronic devices during the takeoff and landing phases of
flight. It must be recognized that the potential for personal
injury to passengers is a paramount consideration as well as the
possibility of missing important safety announcements during
these important phases of flight. This is in addition to
lessening the possible interference that may arise during sterile
cockpit operations (below 10,000 feet).