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11
Putting the MM 400 into operation
Switching the MM 400 on/off
Switching the MM 400 on
왘
Press the
Master
button
햶
and keep it pressed until the
LED
햲
flashes blue. You hear an ascending beep.
– When switching the headset on
for the first time
, it will automatically
go into pairing mode. The headset is waiting to be paired with a
Blue-
tooth
enabled device (see page 12).
– When the headset
is already paired with an audio source
, the
Bluetooth
connection is automatically established. You hear an
ascending beep and then your audio source.
– When the headset
is already paired with an audio source
but the
audio source
is
switched off
or out of range, the
LED
햲
flashes
blue. The headset will try for 3 minutes to connect to one of the up to
8 previously paired audio sources. If this fails, the headset automati-
cally switches off after 60 minutes.
Switching the MM 400 off
왘
Press the
Master
button
햶
and keep it pressed until the
LED
햲
flashes 3 times red.
You hear a descending beep. The
Bluetooth
connection is automatically
deactivated. The headset switches off.
CAUTION!
Hearing damage due to high volumes!
Listening at high volume levels for long periods can lead to
permanent hearing defects. Please protect your hearing.
Sennheiser headsets also sound exceptionally good at low
volumes.
왘
Set the volume to a comfortable level.
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