Because this headset has answered almost all of my requirements. Indeed, the sound is excellent, the bass is very present, isolation is great (I hear almost my beautiful mother talking next to me!), And I can take it with me because it s adapts to all my devices. Furthermore, the design is AWESOME. In fact, you'd be in the hands of a professional player headphones. Finally, the fact that the microphone can be detached in order to (for me), take it for everyday life GRAND adds more to this helmet.
In that case, why not 5/5?
Because it is impossible to hear anything having too daiguës. Indeed, the performance of these is MUCH too pronounced (which, when not expected, and that was mounted sound to enjoy your favorite piece, because of ear pain).
In conclusion, this helmet far exceeds all expectations for sound design and insulation (what else?). His only fault, acute too pronounced for my taste.