Looking for advise and/or experience regarding the new in-ear headphones ... I really don't like using my earbuds on flights because they need to be turned up WAY too loud to be heard. There is a lot of ambient noise to overcome and it gives me a headache after an hour or so (not to mention it contributes to hearing loss). I typically wear ear plugs on long flights and it makes a world of a difference. Plus I like to block out all the background chatter of those sitting around me. People are annoying. Anyways, my question is simply: Do the new in-ear headphones act like earplugs in addition to being headphones? Will they block out the drone of the aircraft while letting me enjoy my tunes?