Originally Posted by cruise2006

If you look on Korean's website you'll see fairly detailed info on this. Each coach seat has power, but you have to remove battery.. no charging allowed. There is also a USB charging port for small electronics.

As for headphones, it's the standard mini plug. I don't remember having to use a two prong adapter, but this is pretty much the same for "all flights" from LAX to ICN that all have the same economy seat package as used in the 380.