Until now I used-ear headphones for listening to music while commuting, because I thought that's what isolated the better of background noise. I was skeptical about traditional headphones. However after testing, we must admit that the quality is at the rendezvous. Already, the first point, the thread of the helmet, twisted, robust and can be changed, unlike the ear (so that I have eaten a lot). Then headset folding fact that you can easily store it in its hull. Moreover, it is perfectly adjusted. Another point: this headset to a noise reducing function, activated by a rechargeable battery by USB. Indeed, it works well, you just do not forget to turn off the function on pain of having a battery that will discharge all the time. And this is unfortunately often the case. Remains sound: say it right away, it is very good. THE sudden better to have digital files of high quality too. On a streaming application, the difference is huge. Still, the overall sound is good, not too much bass that make boom boom and annihilate the sound. Noise reduction is bluffing and you can listen to classical piano in the RSP, unhindered. Still, I feel discomfort after a period of use, but it often did this to me with closed traditional helmets. Not with the-ear. So, I do not know if it's worth it to put that kind of money for a product that we can find the same rendering to 3 times cheaper, unless allergic to-ear, as I understand it. That said, the strength is an important asset that can tip the balance ....