But guess what. After a few months of use, the kit has simply stopped (green LED off, no sound, radio silence so to speak). Without touching anything, without doing my kit died like that, connement. And after a little research on the internet I was very shocked to see that I'm far from the only one concerned! In searching for things like "Z313 stopped working", testimonies abound, and there is no solution, otherwise the return guarantee if you are lucky you slap it early enough.
Besides, I also have a Logitech X-230 which works beautifully for years, so I do not expect such a problem on a newer range.
So buy knowingly, although it is a great product for a good price.