If you own the older H9 version don't bother getting these ..the sound quality is average and the gold/brass colour looks good in photos but in your hand makes them cheap looking
It does not have the same quality of bass as other noise cancellation headphones but it make the sound more pleasing to the ear. I particularly enjoy listening to acoustic music with these headphones. Very good price with Peter Tyson on ebay too! I only dreamt of buying them but RRP in store put me off.