So, I finds well!

Can connect me on the whole, JAN.
Bluetooth detection and audio streaming works einwandtfrei.
A memory stick is not recognized me, but now I have the little creatures of EMTEC bought and recognizes it immediately.

But something I did then but also to criticize:

The buttons for backward and forward are very close to the source button, so I unfortunately on many occasions held the next song to choose, selecting the next function. A bit annoying, but you can handle when using the remote.