Very satisfied. Works flawlessly. In my view, he has a neutral tone, without strong emphasis in the bass or treble. On iPhone, I recommend it even to try with the attitude rock or classical. Mild heights, but also gentle bass. Even better sounds of headphones, I think, if you connect it directly with a cable, which is not necessarily surprising. Bluetooth has its "price". There is now a newer model, but can recommend it unreservedly, because hardly any changes are apparent. The seat is incidentally also good and adaptable within a wide range. The battery will last several hours. The manual is monosyllabic, I think. A more extensive but to get on the web.