Be careful not to buy Chinese counterfeiting, we sell on ebay for example, and I got screwed, the sound was terrible. Yet I had bought an English seller, like what same distrust for Europe. On Amazon I've only had the original products and the sound quality was at the rendezvous (I bought three of these helmets), perfect for that price unless you are a musical expert, a difficult word ...
I listen to music through personal music players for over 10 years and I can tell you that the sound of these headphones is wonderful.
As against a major drawback, it is very fragile, the cable splits at the base of the plug, very easily, so do not fall asleep with headphones for example, you risk damaging the sleeping. We need to take good care.
