Using the MM 550-X
MM 550-X
| 17
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:
왘
Briefly press the
NoiseGard
button
쐋
.
The LED
1
lights up red. The TalkThrough function is switched on.
To switch the TalkThrough function off:
왘
Briefly press the
NoiseGard
button
쐋
.
The LED
1
goes off. The TalkThrough function is switched off.
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:
왘
Press the
Bluetooth
button
쐂
and keep it pressed until the
LED
1
flashes 3 times blue. The
Bluetooth
function is switched on.
To switch the
Bluetooth
function off:
왘
Press the
Bluetooth
button
쐂
and keep it pressed until the
LED
1
flashes 3 times red. You hear a descending beep.
The
Bluetooth
button
쐂
goes off. The
LED
1
flashes blue and the
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:
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.
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When the TalkThrough function is switched on, you cannot listen to
music.
쐂
Button
Duration Function
Incrementally increases the volume
Incrementally reduces the volume
Continuously increases the volume
Continuously reduces the volume
+
–
1 s
++
1 s
– –