The build quality is atrocious, the heavy weight probably comes from the battery, otherwise the thing is only plastic. The buttons have a built-in child safety, because a child is sure his problem have to press this. The menu has a very illogical. There are many languages, but no German. The display when a song is playing is cluttered, confusing and somehow meaningless.
All in all probably the worst purchase of my life. I definitely advise against purchasing. Have the product packed after 10 minutes again and sent back