I'm still excited about the sound that conjures up the small box. Especially the bass is phenomenal in relation to the size of the box. The heights are not always so well reproduced that you can but compensate by turning on the sound button, which in addition to the significantly enhanced sound base (surround sound) - subjectively perceived - the highs are better reproduced. Overall, the sound is very natural and comes in this regard playing on my home theater system quite close. I had previously gained me some weeks but again much smaller "Audiovox Twiek 6" (and then returned again), who had a rather unnatural and "flat" sound. Of course, the costs only 1/3 of what the Sony-box costs, but the extra expense for the Sony box was worth in every respect, are worlds between the two boxes!
The quality of reproduction of the Sony box is relatively independent of the location, which for example in the "Twiek 6" is not the case.
The Bluetooth connection to my Samsung Galaxy S4 automatically runs smoothly, reliably, but only if I turn on the box after the smartphone.
It is alleged that the box is also activated via NFC (and Bluetooth) can turn on the smartphone, but this is my only rarely (also enabled NFC app) succeeded and you can "forget" because of the inconvenience associated.
The box supports the apt-X codec, which as my Galaxy S4 could with contributing to the great sound with a corresponding "Partner".
Also, the battery lasts a long time, given 8 hours of operation until recharging it reaches my estimation also.
The 5 star can I forgive this box without hesitation.