However, the sound deserves special attention. Compared to various in-ears and speaker systems are very dull this KH. Even otherwise, the frequency response is rather wild, the sound comes hall-like and hearty over. Who is it, is well advised with this KH. Those looking for neutral sound, should look elsewhere. That is not the way to the BT transmission, because the KH sound just as when using the jack input. This, incidentally, also works (inadvertently?) As output.