For the product, very satisfied also, I just regret the absence of a regulator on the thread of his / helmet, which would have been a plus,
Niquel audio quality, unlike anything that we could say, personally I listened Rap US (Lloyd Banks, Lil Wayne & co), the hard rock (AC / DC), and many music electro / house / hardstyle / hardcore; and although this is very satisfying, I highly recommend it, pe, pe I mean, one can note a little lacking in the mids.
I still repeats again, I highly recommend this product, quality / unbeatable price.