Doro HearPlus 333cl Manual De Instrucciones página 17

Backlighting
The backlighting brightness setting also affects the LED
display.
No backlighting. Pressing the alarm switch
will turn on the backlighting for 0 seconds.
Dimmed backlighting.
Pressing the alarm switch will change to
bright backlighting for 0 seconds.
Bright backlighting.
If the mains adapter is disconnected, backlighting is
automatically turned off to save battery power. Press the
alarm switch to turn on the lights for 0 seconds.
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