Mercedes-Benz SL Roadster 2012 Owner's Manual page 528

Right-hand battery: the positive pole (+)
must face downwards.
To close the battery compartment:
X
press the battery compartment cover
downwards until it engages into place.
If the batteries have been inserted cor-
rectly, the indicator lamp will light up green
when the headphones are switched on.
i
The operating duration of the headphones
with a set of batteries is up to 40 hours.
Basic functions
Using headphones
You can use the cordless headphones sup-
plied and/or up to two sets of corded head-
phones connected to the corresponding jack
of the rear-compartment screens
( page 520).
Y
Information on the cordless headphones
( page 522).
Y
Using the main loudspeakers
This function is available in conjunction with
COMAND Online.
You can use the vehicle loudspeakers to lis-
ten to a disc inserted in the rear-compartment
drive. To do so, at least one of the rear-com-
partment screens must be set to disc mode.
To set on COMAND Online: press the
X
$ function button to switch on an audio
mode.
Select Audio Audio by sliding ZV the COMAND
X
controller and press W to confirm.
The Audio menu appears.
Select Rear Rear by turning cVd the COMAND
X
controller and press W to confirm.
i The headphones' volume setting does not
affect the main loudspeakers.
Rear Seat Entertainment System
Selecting sound settings
You can select the sound settings in the audio
CD/DVD/MP3, TV, video DVD and AUX
modes.
Switch on an operating mode (e.g. audio
X
CD mode) ( page 527).
Y
Select Treble Treble or
X
the :=; buttons on the remote
control and press the 9 button to confirm.
An adjustment scale appears.
Select a setting using the 9: but-
X
tons and press the 9 button to confirm.
Multiple users
Simultaneous use of the rear-compart-
ment disc drive
The two rear-compartment screens can be
operated almost entirely independently from
one another. However, there can be a conflict
in some menus if the two screens are used
simultaneously.
If the rear-compartment disc drive is being
used for both screens simultaneously, select-
ing certain menus or settings on one of the
screens also affects the other screen.
The following functions affect both screens:
changing playback options
R
selecting a track (from a track list or folder)
R
using the play, pause and stop functions
R
fast forwarding/rewinding or scrolling
R
calling up the DVD menu and navigating
R
within it
setting the language, subtitles and camera
R
angle
calling up interactive DVD content
R
The following functions affect only one
screen:
audio and video functions as well as picture
R
settings
switching between full screen and the
R
menu
Bass Bass using
525
Z