Same here. I want to make a battery powered noise canceling headphone that automatically shuts off if the jack isn't plugged in. Why should a 250 dollar pair of headphones not do this automatically when the battery is required for the experience!?
Seriously though, if I go in a server room I'm putting noise canceling on. I still need to hear if someone is talking to me, so no music unless I'm doing repetitive work.
http://www.headphone.com/headphones/in-ear.php?sort=value&di...