Super helmet that I at least I had for almost nine months, the sound is nickel and my only complaint is for me Bass Impact poorly designed (the noises are too strong even when I put at the minimum) I put 5 stars but I now had a small problem with the helmet, I realized that there were cracks below the gray circle like the atria and one day by removing the helmet crack the right atrium broke while I was taking care. I called Sony (which must ensure the warranty) but they seemed to me not too want to replace the product and therefore told me to contact Amazon, who replaced me free without hesitation.
So to conclude: very good helmet but a little too fragile