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3.2.1 Audio menu
Press “1” to get the OSD, press “
△
” or “
▽
“ to move the highlight to Audio menu, and then press “1” to
enter Audio adjustment,which is done by pressing “
△
” or “
▽
“.
1) Volume
a. Press “△” or “▽“ to increase or decrease the volume of the built-in speakers. Then press “1” to confirm
the adjustment and back to Audio menu.