3-4 Switches 77
strong signal (decrease the frequency);
● Press ◁ once to select the pre-saved radio station upward;
● Press and hold ▷ to automatically search the next channel with strong
signal (increase the frequency);
● Press ◁ once to select the pre-saved radio station downward.
■ In USB / Bluetooth music / third-party music APP mode:
● Press ◁ to play the previous song (song number -1).
● Press ▷ button to play the next song (song number +1).
■ Bluetooth call recents and telephone directory interfaces:
● Press ◁ to select upward;
● Press ▷ once to select downward.
Instrument
■ In the instrument menu mode:
● Press ◁ to switch leftward to a first-level menu and its submenus;
● Press ▷ to switch rightward to a first-level menu and its submenus.
■ When setting for preset charging:
● Press ◁ to switch leftward to hour and minute settings;
● Press ▷ to switch rightward to hour and minute settings.
Phone button (if any)
■ Press this button to dial/accept a call (the audio system becomes mute
when the button is pressed).
■ When the system displays an interface not related to Bluetooth, if
Bluetooth is not connected, press this button once to make the system
enter the Bluetooth connection interface; if Bluetooth has been connected,
press this button to make the system enter the dial interface.
■ After entering a phone number in the dial interface or selecting an entry in
the call recents or phone directory interface, press this button to achieve
the dial function.
Speech recognition button (if any)
Press this button to switch the multimedia screen to the speech recognition
page and implement the speech function.
Instrument / return button
■ In the non-instrument menu mode, press the button to pop up the
instrument menu.
■ In the instrument menu mode, press the button to return to the
previous interface or to exit the menu if no previous interface exists.
■ In the charging interface, press the button to enter the preset
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