Used on a latest generation iPod Nano, audio improvement is there, without being miraculous, over standard headsets that are already good enough. The sound is detailed but without reaching the quality of a headset 200 euros. Adjust sound very practical. The BIG advantage of these headphones is their comfort. They are held close to the ear canal by "wedges" in very comfortable silicones (three sizes included). Forget! Product to recommend to people who do not support headphones that must go into the ear canal.
