When the music is good!

See video on Amazon.com I'm delighted to have this helmet which has many advantages:
* Excellent audio / sound quality, and this is what we demand a helmet in the first place ...
* Touch control system of the sound (volume but also before / back on track, and Appel hands-free)
* Comfortable wearing with reinforced foam on top of the head
* Ease of Bluetooth connection (very simple)
* Ease of launch of a song (there is the button immediately, it comes to hand, it's nice)
* Its storage bag is more significant
* Early wipe to clean the helmet
* And finally the Jack connector very good

The only drawbacks I noted:
* The difficulty of making fine adjustment of volume with the touch system, and suddenly I find myself sometimes adjust the sound directly from the smartphone.
* It shook me a little bit more than I would like it on the ears, and I have not found a possibility to improve it. I count done on the port during the time, so it softens, I will change my mind a few times depending on what return because of my 4 stars (I will increase to 5 justly the softening occurs at the clamping ears)

You will see a short video against for more information.
Finally, it would be interesting to add a reduction system active ambient noise, but it would probably have raised the price substantially.