See also:

How to use brightness control and display ON/OFF button
To change the display brightness, push the button. Pushing the button again will change the display to the day or the night display. If no operation is performed within 5 seconds, the display ...

Air pollution
Industrial pollution, the presence of salt in the air in coastal areas, or heavy road salt use accelerates the corrosion process. Road salt also accelerates the disintegration of paint surfaces. ...

FM/AM radio operation
FM·AM button: Press the FM·AM button to change the band as follows. AM → FM1 → FM2 → AM If another audio source is playing when the FM·AM button is pressed, the audio sour ...