Unfortunately, the sound quality is not just rotten, in addition, the system is a permanent electrical "Fiepton" by itself, which is not tolerable for my ears and lead to an early headache.
The whole thing was quickly back in the box and returned as unpacked and connected. Unfortunately, I wait now still on the refund of my money ... but I'm still young.
Conclusion: Not recommended, rather save a little more and buy something sensible.