SoundCube

The SoundCube can be used as a kind of sound diffuser during music or video, but can also be used for calling. The sound comes not only from all sides but it will also received from all sides.
That means that it can also be used for calling someone but even better it can be used during groupcall in a meeting. You put the SoundCube in the middle of the table and everbody can listen as well as talk from all sides.