The unit was put into operation and turned out to be surprisingly high in the sound without any further problems. Compared to the rather small size of the device, the sound volume is very acceptable.
However, the design is not fully developed:
The device itself is very narrow, but because the orientation of the power supply and phone jack on the back, the computer prompts more space than I would like, if I do not want to direct the cable to the connector wrinkles.
The iPhone port is unfortunately designed so that you have to free the iPhone from each bag before you can connect it. For me, it has therefore not shown regularly to connect my iPhone directly. However, I use the speaker like on the jack connection, among others as speakers for my laptop.
For the price I would have wished, however, that a jack cable would be included with the delivery.
Conclusion: In his limited-application, it is quite convincing. Had these problems do not exist, there would be 5 star.