Strange... we can't find these anywhere else but the seem so delightfully cool. This speaker set is completely wireless—the sub-speakers don't even have power cords. While the link a kind reader sent us is translated from French, it's almost impossible to find anything else about this set. See, paragraphs like this:
Among the obstacles with the installation of a system surround in its environment of leisures or work, the presence of many sons belongs to most often quoted.
...don't help much.
Translated Review [TomsHardware]