After about two years of use, the individual components successively adopted.
At first (after about 13 months) could not be so mobile use with batteries the box. The Creative Support was neither helpful nor cooperative.
Then (7-8 months later) be adopted the 3,5mm jack input. Thus, music could be played only and exclusively via the Bluetooth connection. For me angry, because I have the box often connected via the jack with my mobile TV in the garden.
Another five months later, no longer worked and the Bluetooth connection. No connection could be made between Box and smartphone (Apple tried with 1 unit 2 and Samsung smartphones, as well as a Galaxy Tab). A new coupling was no longer possible. After about 2 years now the end was therefore come as no functions stopped working and the box has been discarded. The sake of completeness: The box was not wet, was not subjected to strong shock or the like.
Conclusion: unconvincing sound and the component death on stages take me to the decision that speaker can not be a friend.