How can I expand my Stereo M? I would like to buy an additional portable device that can then be paired and taken into the bathroom or kitchen.

The links to Teufel.de there lead to the product Teufel Stereo M (without Raumfeld in the name). The pictures of the boxes and the connection panels differ significantly from those on their website. In particular the power supply of the passive box and the front of the white variant without cover . Are these two different products? Or are the pictures in your shop no longer correct?