I was influenced by dithyranbiques comments for this item. The purchase of this product does not ruin me but I do not recommend it. I wanted to listen to uncompressed music. Listening to compressed music and the use of a helmet are all music we listen to too high a level. I wanted to turn down the volume while keeping the same sensations. This is Bummer! The sound is of lower quality than all the cheap mp3 I previously used. The positives are: aesthetics and light weight when you do sport.
My advice: take your headphones and ask the dealer to try you will understand me.