Processing:
It is pure plastic however seems durable. Should throw around the neighborhood to the speakers, since then the shell could go quite broken, but that's to yes and logic of its own. What I liked not good is the cable between the two boxes. This seems to me the absolute vulnerability in the system to be there sooner or later times one of the two boxes will depart from the cable. This means that you should deal carefully with the boxes. Otherwise, it indicates the processing absolutely nothing to complain about.
Sound:
Sonically comes from these boxes out an amazing amount of sound which acts although slightly down, however, especially with the price absolutely in the frame. I personally like the sound. Will you have something better to spend about twice (eg Creative D100).
The integrated battery has with me about 8-10 hours persevered (at normal background volume). However, the louder you turn the boxes, the shorter should be the term.
Overall, I find the Dynsphere very successful. Although the cable between the two boxes is not the ideal solution, but makes the boxing flexible (stereo sound and you can see the boxes in different directions rotate (grade at the lake can be useful)). I particularly like that the front surface is completely grade what is good for transportation. You can see the boxes just piling up and so receives a fairly robust EI that can be transported easily and protects membranes from damage.
