Headphones.
I will shortly be going long haul to Melbourne via San Francisco on United.
To ease the boredom I will be taking a netbook with my MP3s and some videos. However at some point the battery will run flat so I may want to watch a film that the airline is providing. I have a nice pair of noise cancelling headphones so the question is can I plug them straight into the armrest socket or do I need some sort of converter. The headphones have a 3.5mm jack.