Bcp having trouble with intra-auriculaure, I had a helmet of the same type (ie with little advanced) and I was thrilled. Having lost I had to look for his replacement ... I found it with sony. His very correct, bass well enough returned. Only small Bémol has a low volume the sound is diffused and your neighbors to enjoy. Do not have a magnet in transport neighbor whose helmet "leaking" it's a shame ...
