This helmet will have a duration that week before the microphone cable is "section" and are not made for lack of attention. The cable being very long, I did not have any basis to unfold and I realized too late that cable has crush and fold was the point that the protective rubber microphone cable is decided.
So my microphone was messing start slowly until I discovered the cause: /
If you buy the helmet made especially close attention to the cable and unfold the well in case.
