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Press or to
adjust the volume
(0~4). You will hear
the sound of the
volume.
Press
and “Done” will
flash thrice. The screen
will automatically change
back to “Speaker” setting
menu.
Press
several times
to return to home screen
“Last Inj.”.
Even though the
volume is set to
zero (mute), you
will hear an audible
alarm for warnings.
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