Do what I wanted to hear music in the room where I am right now.

The sound boxes properly for their size, who want to enjoy bass, or "HiFi" dele quality, should buy something else. Who just wants to listen to his music without cable clutter in another room that works, thanks to the remote control, pretty good. Very good, I find the way to let the speaker go on right, left channel or as Monobox via a slide switch. I have connected both boxes on Mono and have ever placed in a 2 separate rooms.
On the subject of Connecting: About the Headphone socket I did not want on the tape deck starting on my amplifier, the signal was too low, so I decided to connect the transmitter to the preamp output (unfortunately not every amplifier / receiver) to connect. A great alternative to Kopfhöhrerausgang.