Those things are really great! Had previously the Sennheiser CX200 StreetII that are in the same price class and they were really not bad. However, also already 2 years old and the first loose contacts became noticeable. In addition, the technology is now advanced. This can be seen at these headphones. The bass are definitely rich, which is certainly the larger sound box of plugs. The heights are also clear. I own an iPod Nano, and finally it brings what if I change the equalizer. In addition, the flat cable makes a much more robust impression than the thin round cables of other manufacturers. Surely there are better, but 50-100 euros for a few plugs are just too much! Strong buy recommendation from me ...