I received very quickly the helmet, and pursuant to the rules. By cons, extremely disappointed as unusable, go your way; - Its permanent whistle - The base volume is too high It would therefore be sufficient to lower the software via download. Unable to open the application of the equalizer, after some research on the net on experimental projects, I find myself in exactly the same situation as users, impossible to turn down the sound accurately, it can be done with the wheel but suddenly you hear nothing.
Search another helmet, I referrals this helmet. Appraisal: unusable Very disappointed
Ps: following the various investigations, it appears that this is more a software problem since before version 1.0. I do not know what the whistle was not present, following different release and the problem appeared only last despite different versions, the latest of which dates if there is more than one and a half n has not changed and the clients can not open the software.