Its housing is made of black plastic, extend its ups and downs in strips. On the sides are perforated plastic grid for the loudspeaker. Underneath is a rubberized surface, so that it is non-slip even on smooth surfaces.
In front there is the on / off, and call acceptance Paring- and end call key and the volume / next title and silent / last title keys. On the back are well protected under a thick rubber lip of the 3.5mm jack input and the Micro-USB charging socket.
Joining Tablet / Laptop / Smartphone and speakers via Bluetooth works without problems. The sound is for this small part really well and completely space filling in a 18 m² room. The volume measured with max. 82 dB is very compelling. Even the bass is heard.
It can also two devices are simultaneously coupled to the speaker. When the music stopped on unit 1 and unit 2 is activated at, so he just plays of this further.
Also music from my SanDisk, which has no Bluetooth, he plays without any problems from the supplied jack cable.
Whoever wants to can answer incoming calls through the speaker, refuse to make calls via the built-in microphone and can even call via Redial the last number dialed. For those who uses it determines helpful and the call quality is absolutely fine in a quiet area, not noisy or scratched All thing I do not use this feature.
The instructions included entirely in English, but the speaker is self-explanatory.
When fully charged, and medium to maximum volume of the lithium-ion battery keeps good 7 hours.