These are great headphones....I currently have a pair of Bob Marleys...House of Marley Positive Vibrations Rasta Headphones
which are pretty good....but how they hurt my ears after an hour or so. So these Logitech UE400 come out a little better on comfort!..well padded and a slightly different ear shape.
Sound wise they are really impressive.....I'm a 70's punk rock and dub reggae man (mainly) and the sound is great in both formats. I know that these are designed for the latest apple gadgets...which I don't have!..but they performed well on my sadly defunct samsung mp3 player...and my "old school" i pod!
What is also good about these ..is the headphone cable..which you can unplug from headphones and replace if needs be...how many pairs have I had to throw away because of a busted jack plug!
There is also a fab little line controller ...but this is really for your latest gadgets...click control to answer phone calls and control the tracks.
Me ...I tend to switch on the mp3 player and see where it takes me!
All in all a very good set of headphones.....perhaps offering me a little more than I need.....but at some stage I may be dragged into the 21st century (with overdraft in tow) and get apple iphone...!!!