I bought there three weeks now and what more they are perfect. I'll add that the most difficult was finding the right size with ferrules. For accustomed to intra hardcore that one down in the ear canal, it is thought that the early helmet is not going to hold. But that's the magic Bose operates. The tips perfectly well take even one comes to forget them. Just a final word to his still, we buy them for that! The sound is clear, powerful, just a great word. I recommend despite the high price.
