Beautiful boxes with disturbing noises

First of all, I let myself not really put off by bad reviews, because you never know how high the expectations of others. Since I could not expect top boxes for this price, but it also does not necessarily need, I ordered these boxes. Important to me so far is that I can connect wirelessly via Bluetooth to the mobile phone and PC.
The packaging is kept remarkably little and very simple. The boxes look exactly like the picture. The remote is very small and has few features. (What does not bother me.)

The boxes once connected, immediately sounded an annoying buzzing sound. (As if a bee buzzing behind a curtain) I thought that maybe the only sounds when you turn first. Unfortunately, it is humming permanently on. (Unless you switched from the complete boxes.)

Even with soft music that sound you can hear very strongly. So you can listen to music at high volume, as it does not really stand there. Unfortunately, no cables are to connect the speakers to a TV. So you have to willy-nilly spend a little more to find boxes that are on the one hand and on the other by a wireless reasonably good quality.

Conclusion: If you want some quality and do not want to constantly hear the disturbing noises, which should look for something else.