The sound we could not test unfortunately because we have received no transmitter because the adjustment of the frequency runs over a wheel that does not can be adjusted in detail. Accordingly, there is no transmission memory. Thus, the remote control is also useful only for the CD function.
The CD function, we then do not even tested. That's why there are 2 stars. VII. may still something tear.
We have the equipment then unfortunately have to return. About the third dealer, everything went just fine!