I too am a hi-freak and have already spent a lot of money for boxes, amplifiers, etc..
However, one must time the church leave the village, the Mobi is for the money, a great part.
That you would expect in such a small membrane with only 3.5 cm diameter no wonder should any potential buyer be clear. Then you have to dig deeper into their pocket and buy a stereo system from Harman Kardon & or the like. The main thing nix Bose!
As an external speaker for phone or tablet this little thing, however, is awesome. Both volume and the sound are perfectly adequate and in order, he sounds neither thin nor distorted nor overused. Definitely better and also cheaper than comparable devices of Raikko or whatever. And for a spontaneous party at the BBQ or the like reaches the Mobi wholeheartedly.
In particular, the Bluetooth function is well, the range is correct, only the annoying and loud announcement while pairing would not be, so that you can live however. Even the battery lasts loose by 8-9 hours of continuous use, but is dependent on the volume. Charging is completed in about 2 hours. That the short cable is criticized, is only partially comprehensible, firstly because it is supposed to be integrated and fit under the device, secondly, what one buys a speaker with Bluetooth? The cable will probably never used by most users and when, for little money, there are extensions.
Reservation must be made, the extremely heavy bass music like techno or trans or the like brings the Mobi has its limits, however, I have already mentioned that in such a small membrane miracles, let alone bass orgies are to be expected.
If you told someone something else, whistles it and try it yourself. I at least do not regret the purchase and would recommend the Mobi anytime.