Multi-channel playback,surround
Choose between stereo and multi-channel playback, surround.
Setting multi-channel playback, surround
1. "CD/Multimedia", "Radio" or "Settings"
2. "Tone"
3. "Surround"

When surround is activated, multi-channel playback is simulated when a stereo audio track is played.
See also:
Top-class comfort features: Bang & Olufsen High-End Surround Sound System
delivers an unparalleled audio experience.
The standard-fitted comfort-enhancing features on board the new BMW 6-Series
Coupe include 2-zone climate control, a multifunction steering wheel, electric
steering column adjustment, electrically ...
Shoulder support
Also supports the back in the shoulder area:
Results in a relaxed seating position.
Reduces strain on the shoulder muscles.
...
General information
The following functions are available:
▷ Use of a mobile phone as a telephone.
▷ Use of a mobile phone as an additional telephone.
▷ Use of a mobile phone as an audio source.
...
