4.
Function setting button
This button is used to select the operating function which includes boost, smart and silence
mode. Once press it, the interface will be enter mode selection interface. In this interface,
you can set boost mode, smart mode or silence mode. After selection, please press Confirm
to confirm.
After set the function mode, in the icon area of mode will display your selection in the left
side of the screen.
Silence mode
Smart mode
Boost mode
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V.2