Great surprise that this helmet, it is beautiful, well built, and above all I am pleasantly surprised sound as it is really excellent bill. The bass is certainly presented but they are not like a beats. They are precise and dynamic. The midrange and treble are good even if they lack some accuracy (compared to my AKG K 701), but it is anything but bad. Connection cable detachable so really convenient and really this helmet especially for this price is very recommendable.