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Using the headphones
PXC 550-II | 29
Activates/deactivates the call
enhancement function
This function reproduces the voice of the person you are talking to so
naturally that you get the impression that the person is in the same
room and not at the other end of the line.
You can activate or deactivate the function via the Smart Control
app.
Setting the voice prompts/beep sounds
To be able to set the voice prompts and beep sounds, you require the
Smart Control app (> 16).
▷ You can change the language of the voice prompts, choose
between voice prompts and beep sounds, or deactivate the status
messages with a few exceptions (e.g. rechargeable battery is
empty).
Using the audio cable/activating flight
mode
If you connect the audio cable, flight mode is activated and the Blue-
tooth wireless connection is deactivated.
Use the audio cable when:
• wireless transmission is not allowed, e.g. during aircraft take-off
and landing,
• the headphone's rechargeable battery is empty,
• your audio source doesn't offer a Bluetooth connection.
The functions for controlling music and/or calls or voice assistance
are not possible. The active noise cancellation ANC can be fully used
provided that the rechargeable battery is charged.
You can also activate the flight mode without connecting an audio
cable to the headphones (> 31).
Sound effect Meaning/application
Off Effect mode is switched off.
Movie For more exciting entertainment. Ideal for
movies.
Club For more room impression. Ideal for music.
Speech For improved speech intelligibility. Ideal for
podcasts ands audio books.
Director Freely adjustable sound effect. Customize the
sound categories according to your needs:
• Boost (boosts certain frequency ranges)
• Spatial (simulates virtual external loudspeak-
ers)
• Reverb (simulates a virtual room)
• DLC (Dynamic Level Control)
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