Owner's Manual

NPP-3443 JHDBTC1
press during pause to start playback. Long press to mute (MUTE).
[ ]：
Brightness adjustment key: short press for day and night brightness
selection mode, long press for custom adjustment of brightness and contrast
Audio menu
Press the UP / DOWN key at the same time, the audio output gear map one
interface appears, and then press UP / DOWN again, the
appears:
Chart 1
Press VOL key to select, press other keys to exit or 3S automatically exit and
save, default: 350mV
Brightness and contrast settings
 Cycle Short press
picture appears:
Default: Day: 8, Night: 2
Long press: The following picture appears:
Press the previous or next song key to make the corresponding selection.
Press the pause button to confirm and the
three pictures will appear.
Press VOL +/-
to adjust, press the pause button to confirm the save or 3S auto
save to exit.
press during pause to start playback. Long press to mute (MUTE).
Brightness adjustment key: short press for day and night brightness
selection mode, long press for custom adjustment of brightness and contrast
Press the UP / DOWN key at the same time, the audio output gear map one
interface appears, and then press UP / DOWN again, the
second interface
Chart 1
Chart 2
Press VOL key to select, press other keys to exit or 3S automatically exit and
Brightness and contrast settings
is Day and night
brightness display: The following
Default: Day: 8, Night: 2
Long press: The following picture appears:
Press the previous or next song key to make the corresponding selection.
Press the pause button to confirm and the
interface corresponding to the next
three pictures will appear.
to adjust, press the pause button to confirm the save or 3S auto
press during pause to start playback. Long press to mute (MUTE).
Brightness adjustment key: short press for day and night brightness
selection mode, long press for custom adjustment of brightness and contrast
.
Press the UP / DOWN key at the same time, the audio output gear map one
second interface
Press VOL key to select, press other keys to exit or 3S automatically exit and
brightness display: The following
Press the previous or next song key to make the corresponding selection.
interface corresponding to the next
to adjust, press the pause button to confirm the save or 3S auto