This helmet is a helmet studio that insulates very well noise "outside", it surprised me a bit compared to my other helmet that is much less insulation (a Sony MDR 7506). Otherwise, comfort is very good, there is room inside, even for big ears .... The sound is very soft, not aggressive at all, it is also a guarantee of comfort, the spectrum Sound seems fairly balanced to me with "acute" a little off, but it may be that my ears tired and aging ..... The stereo image is good and well respected stamps, so with a small restriction in the high register, but hey, as I do not have the long time it certainly lacks running, hence my overall rating of 3 stars only for now ......
