Sennheiser MM 450-X Instruction Manual page 20

Using the MM 450-X
Voice dialing
The voice dialing function must be supported by your mobile phone (with
HF profile) and be activated. Follow the instructions in the instruction
manual of your mobile phone.
To activate the voice dialing function from your MM 450-X, press the
Bluetooth button :
Button Duration Function
Muting the headset's microphone
To mute the microphone on your MM 450-X, press the the
Bluetooth button :
Button Duration Function
2s
Any
button
Switching the Bluetooth function off
If you press the Bluetooth
tion switches off!
Activates voice dialing
Deactivates voice dialing
Activates the muting function
(acknowledgement tone)
Deactivates the muting function
button too long, the Bluetooth func-
MM 450-X | 19