See also:

USB audio interface/mobile phone audio interface
At a glance It is possible to connect external audio devices. They can be operated via iDrive. The sound is output on the vehicle loudspeakers Connectors for external devices ▷ Connection ...

Having possible commands read aloud
You can have the available commands read out loud for you: ›Voice commands‹ For example, if the "Settings" menu is displayed, the commands for the settings are read out loud. ...

Display in the instrument cluster
The selected speed is displayed in the speedometer. Green: the system is actively braking the vehicle. Orange: the system is on standby. ...