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Press the Display button to change the display colour from green to orange.
Press and hold the Display button to change the display colour to auto mode. The display will be shown green colour
in morning time but orange colour in night time.
The Display will show the Auto.
If no any keys are pressed within 10 seconds, the LCD back light will be off automatically.
Hearing nature sounds
Press and hold the Alarm button for 2 seconds to entry the nature sound mode.
