segment A frequency, even if 【MAIN】 is displayed on segment B.
◉ For any option with numbers, you can directly enter the number on
the keyboard to quickly select it. If there are only "on" and "off" options,
1 represents "on," and 2 represents "off."
◉ In versions before software V2.4, some menu text, order, and
functions may slightly differ. Understand the meaning literally, as there
are no significant differences.
Function Description
▍Alarm Function
1. Activate the alarm by pressing and holding the 【SOS Key】 for 2 seconds.
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