I possde this headphone because it was included in an offer with the keyboard P140, my main purchase Jme ... I said why not headphones we never too ...

I do not recommend it to anyone. It does not at all on the head and thus isolate anything, one way or the other, it is even trsdsagrable to wear. It's been great machine all soft plastic not strong.
I just sound. When not support the headset against his ear, the space is such that no low. When you press to paste the headphone is the big dception. This headphone is all there is more rough and medium, no dtail, no finesse, and dynamic spectrum trs poor ... There's the sound that goes, well, we understand the words, mean scores (though not all) ... I put a for fun, I have no sound recording booth, I therefore serves as a headphone costs when I'm not a musician, just to not feel alone and see if the musician and just and in place.
I do not write opinions without some Reserved, but I really think the most inexpensive walkman headphones are better than these headphones.