Now, there are some flaws:
The first and not least, after 8 months of use, an earpiece and less, and like all headphones is at the welding taking it Jack kidding.
So I spent a week having fun tossing and turning in every direction the wire to have music in both ears, until it is both headphones that completely bug.
2nd negative point, when walking, the sound of rubber earpiece that rubs against the ear quite unpleasant. but maybe it's due to my ear
And strangely, a sound, a click, when you play by pressing a listener, which means in the other ... I still do not understand why and how, but it is not bin it serious
And most disadvantageous, but it I think it depends on the people and their morphology, headphones, very good insulator from outside noise, returning much less in my ear that my old Sennheiser CX 300. Above all they make much sense, they seem heavier.
So pretty, insulate well, but in the ears, it bothers.
Too bad.
I recommend you only if you can try them before