Changing The Volume - Sennheiser MM 550-X Instruction Manual

Using the MM 550-X
²
Switching the TalkThrough function on/off
The MM 550-X provides excellent attenuation of ambient noise. The Talk-
Through function allows you to communicate undisturbed with other
people without having to remove the headset even when NoiseGard is
switched on.
To switch the TalkThrough function on:
Briefly press the NoiseGard
1
The LED lights up red. The TalkThrough function is switched on.
To switch the TalkThrough function off:
Briefly press the NoiseGard
1
The LED goes off. The TalkThrough function is switched off.
When the TalkThrough function is switched on, you cannot listen to
music.
Switching the Bluetooth function on/off
Via the Bluetooth interface, the headset can be connected to a wide
variety of Bluetooth enabled devices.
To switch the Bluetooth function on:
Press the Bluetooth button
flashes 3 times blue. The Bluetooth function is switched on.
To switch the Bluetooth function off:
Press the Bluetooth button
flashes 3 times red. You hear a descending beep.
²
The Bluetooth button
Bluetooth function is switched off.

Changing the volume

The MM 550-X allows you to change the volume of the audio signal during
a call or while listening to music:
Button Duration Function
+
–
1 s
++
1 s
– –
If you press the respective button briefly, the volume is changed incremen-
tally; if you hold down the button, the volume is changed continuously.
When the minimum or maximum volume is reached, you hear an acknowl-
edgement tone.
button ».
button ».
²
and keep it pressed until the
²
and keep it pressed until the
1
goes off. The LED flashes blue and the
Incrementally increases the volume
Incrementally reduces the volume
Continuously increases the volume
Continuously reduces the volume
1
LED
1
LED
MM 550-X | 17