I chose this rating because it's a great helmet, nothing to fault it, it adapts perfectly to your head, I keep it for hours on pillows without pain, the sound is perfect, being bassist wanted fill plug it into my amp and have a pretty strong low and thanks to the 6.3 jack adapter I have been filled. However I had a little surprise unpacking, already when I opened I fell on a pile .. Who turned out to be useful to operate the bass amplifier, a gift I never knew existed .. . It is a small box that make the lengths of a stack quite heavy and unfortunately, we are forced to put it in his pocket or hang on his belt when standing, otherwise activate it really amplifies the bass well The volume is adjustable, but not to put too much otherwise it saturates and it really is not nice, and finally do not forget to deactivate after each use because the battery does not hold long lit I recommend to people who like headphones bass as much as me !!!
