In sound, this is the highlight of this helmet, I think it should not be easy to do as good value for money. The sound is very good, not too strong on the low and very accurate. Personally I listen to American underground hip-hop, in the genus instrumentals accompanied by piano, violin, etc., and I have added the equalizer "Increasing treble" on my iPod for a report that I call perfect for headphones of this type.
At ergonomics, I wear glasses, bah it stumbles ears: s Well I found a solution: I leave the branches mosses and I put them on top. It is as if I had no glasses and result rather it is doing well. After a few hours it starts to heat up and still remove the helmet feels good despite it being very light.
At finish, it's really not bad but ... there is a but. First the cable jack is super thick, there's still a very big desire to make resistant (by cons it is very long, too long). Similarly for the taking, which is much stronger than a Bose Quiet Comfort for example, despite the price difference. Headphones are solid, same for the hoop. The big worry is the clamping system once on the head over headphones. These are two elastic ridiculous little son, after a month I had one death on 4. I think that it is embarrassing if they drop all but for a headset of this price you could expect better quality at this level which removes a star.
Overall a very good headset whose main asset is the sound of very good quality.