Processing:
The box is made of durable plastic, making all in all a very solid impression. The front is covered with a metal grid and therefore also very robust. On the whole, one would the box more expensive than you estimated.
Handling:
As with any Bluetooth box that I had previously, the handling is easy even with this. Coupling works immediately when printing on the Bluetooth button and the other functions such as the radio or music from USB flash drive function perfectly. I particularly like the case that radio actually works without problems. Interference and Co. one has to when one is busy right on the box. A pity it is that there seems to be no automatic search, which in the FM area but bearable. Radio station once found the box stores and remembers the last frequency.
The volume control is not very nicely organized as one long must press the forward or reverse button. Here are two additional buttons would have been nice (better to use).
If you want to use the box to make phone calls, that's not a problem because a microphone is installed. But you'd have to be pretty close to the box, so that the other can well understand a. If you sit in front of it, but the quality is really okay.
Music from USB key has been detected reliably in MP3 and Wave with me. If you put the stick on, everything is automatically what it is searched. Find the music box, it will be played. I think is really handy. The same is true for microSD cards.
Alarm and clock function:
The box has a clock that can be used to wake you up. The clock must be relatively complicated filters (which also applies to the alarm). If one has the all but set once it works reliably. In spite of this I would not recommend the Box as an alarm clock, as the battery may go empty at night. If you connect the box to the mains, which is not more, but I think then but for more complicated.
Battery life:
The battery life of the box is impressive. If you listen with normal volume music, then the battery will last no less than 6-7 hours. Can load the box on each microUSB charger which is not included.
Sound:
But the most important aspect of such a box is of course the sound. Here the pits due to their design (very small) not perform miracles, the one thus should not be expected. Sonically the box is however very good. On bass you have to design what a result forego but in all of boxing in this price range and size of the case. The middle and high tones are however well represented.
If you compare the box very loud, jarring starts to sound, but this is not otherwise possible at this price. For normal room volume and even long after that the box is to use really good. Sonically incl. The many features I would for 30 definitely expect less than you get here. In other words: The box is in this price range really great. As an alternative I can think only of the Creative D100 is but significantly larger and also costs more.
Conclusion:
A small box with really a lot of sound. Convince the many functions that can spendieren even if you may have a few more buttons. The battery life and processing are really good and suggest a more expensive device. The design is modern and at the same time very convenient because it tightly fits everywhere (matter of taste). For about 30 I would recommend this box in any case.