Atag HI4071M Notice D'utilisation page 82

CONTROLS
Switching the tone on and off
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To switch the tone on, turn the m m i i d d d d l l e e two control
knobs full right (+) and hold for 3 seconds.
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Turn the m m i i d d d d l l e e two control knobs full left (-) and
hold for 3 seconds.
A tone will confirm the change.
10
adjusting the settings