Since no German manual was there, we first need to do some testing, how it works. After recently trying out the service was entirely no longer a problem.
And the device is once connected to the smartphone (we have it connected via Bluetooth and the coupling was carried out without problems), is a great place to listen to music with the speaker. The sound quality is very good - which is also repeatedly confirmed by others: "The sound is great, I would not have expected from a plastic -part!"
Has discovered the device since my son, "stick" it on the window of his room, where it serves as a speaker for his music :-)
If I might like to see an improvement, it's that a German manual would be doing would be. Perhaps you would be able to find and then use even more features.