The sound is amazing: it's like (almost) with headphones, the two main differences are the lack of insulation and reduced bass. Note that you still have to push the volume far enough to have a satisfying sound (on my MP3 player, I have a significant difference between these headphones and my ear headphones. For the latter, I never need to go beyond 5. Now this is really the bare minimum to those Bose headphones.)
In any case, it is these headphones that I use most often (to watch movies, play games and listen to music on my bike => the advantage of a non-existent insulation).
In fact, I really was looking for good quality headphones more boilerplate and especially a helmet usable bike safely inconsiderate (therefore exit the "real" ITE because of their high insulation).
Conclusion: these headphones perfectly fulfill this role and I am not willing to change!
The only downside is that there is not provided with cleaning materials. Because I had obtained with ITE, it was a non-issue for me.