The device has a very good sound through the built-in equalizer and also sufficient volume. Only if you do not know how to do it and then evaluated more negatively, indicates to me that not everyone is just technically gifted. Should we not, but then we should not complain when something does not go. That's just a new EU law. But I must also say that it absolutely goes fine. Many destroy even with young age your hearing. But now audio boost. Volume goes to 20, then a warning tone and a display. Now briefly press the play button and you can already increase to volume 32. Enough absolutely. The device is very handy and easy to operate eiinfach. It has a folder function, sodas you do not always zipping through all the songs. All in all, I give a strong buy recommendation.