Technically, visually, phonetically and even very good

Only once had to charge the battery, it lasted several hours, during which it was impossible to connect, so I was almost a little impatient because I was very curious to see how these speakers would sound itself.
When he was once charged, it was no problem at all to establish a Bluetooth connection. Previously on smartphones, there were between three different manufacturers and price ranges no problems, the connection via NFC works without any problems on a short placement on the appropriately labeled button.

Overall, I am also impressed by the sound, and you have to say here that the quality of the reproduction is clearly dependent on the source. Here, the different qualities in the smartphones used made for example very noticeable. The sound is generally fully achieved in terms of volume an ordinary sonority, where he could be here and there a little clearer and more precise, but I feel the sound in relation to the price of the device as well, whereby since, as mentioned, also differences show depending on the source used.
At full volume, you can fill a large room thoroughly, too, the sound quality is really good.

The various buttons are pure touch fields, which are very good and sensitive, only the on-off switch is a small slide switch on the rear panel. The buttons are very nice and responsive integrated into the rugged, outdoor-esque design of the speaker. Here we come to a small fly in the ointment, however, the rubber used, which determines the design. It summarizes Although well received and is also very well made, but the first unpack it smelled terrible for chemistry. This was to be forwarded within a few hours, after a day, a slight odor was only noticeable if you paid attention, so I generally do not look at it as a problem. For people who are sensitive here that nevertheless might be a problem.
Since the rubber is a bit rough, it summarizes Although great, but takes also like the dirt, despite its robust design so I would recommend it less for locations with a high volume of dust and dirt, especially since the well into the cracks between keys easily dirt collects.

What I find very beautiful, is the fact that you do not accept just a phone call over the box and this may also help to use as a speaker, but that through the built-in microphone can also talk about the box itself. In both the one and the other direction, the voice reproduction is good and natural. The microphone captures the spoken word even from a few meters away.

A clear statement about battery time, I always find to make very difficult because this of course depends on volume at which it is used. In the spirit of good neighborliness, it occurs to me, however, difficult times to make a difference of several hours the box running at full volume, as this would be the end for said good-neighborliness, Otherwise, I can only guess about how long it runs, because Yes distribute the maturities generally under normal use for several days, but the indication of ten hours at average volume seems to be quite realistic.

Attached to the speakers except for the charging cable are two more cables, one for a USB connection through which, for example, also can charge their smartphone in between, if the speaker whose battery can not keep up, and a cable for audio connection which allows you to connect an MP3 player or similar devices where a Bluetooth connection from whatever reason it is not possible or desirable.

All told me this little meatball, with his 25,6x8x10,2cm and its weight of 1300g is not so small, all around convinced and I can recommend it unreservedly!