Tap the Dynamic Volume button to turn on the feature. This will also open the screen where
you can set the minimum and maximum speeds.
Attention Tone
If this is set to Disabled, the voice guidance will sound without a preceding attention tone.
Setting it to Single Tone will initiate a single attention tone before the instructions, while
Double Tone will use a double tone.
.. Route parameter settings
This is a very important page. Settings here determine how routes will be calculated. This
screen is directly accessible from the Route Information screen.
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