PRO-DIVE MT831 User Manual Download Page 3

3

EN

Charging

When you notice fast LED blinking during normal use 
of device rechargeable battery is low and need to be 
charged. Use attached USB cable and plug MP3 player 
to USB port. During charging LED will be blinking slow-
ly. After 2 hours device is fully charged.

Note! Fully charge the device before fi rst use.

Copying MP3 fi les

Use attached USB cable and plug MP3 player to USB 
port of PC computer. Windows will recognize new USB 
mass storage device and install it automatically. Now 
you can copy audio fi les onto MP3 player.

Note! When connected to PC computer LED will be 
on – you can transmit fi les onto player and charge 
it at one time.

Switching mode

Power ON

 – when device is in off  mode press power 

button once, LED will be on and device will be in player 
mute mode. Now press again power button to unmute 
and start to play music fi les (player mode). Press again 
power button to pause and enter into player mute 
mode.

FM radio

 – when device is in player mute mode press 

next track button to enter into radio FM mode. Press 
power button to enter FM radio mute mode. Now press 
next track button to back to player mode.

Power OFF

 – when device is in player mute mode and 

when idle time exceeds 1 min device will automatically 
power off . You can also press and hold for 2 sec. power 
button to power off  device manually. To confi rm this 
state LED goes off .

Player mode

To enable pause/mute press power button once – 
press again to disable it. When playing in progress 
press next/previous track button to navigate or press 
volume up/down button to adjust volume level.

FM radio mode

To mute press power button once – press again to un-
mute it. Press and hold for 2 sec. next/previous track 
to seek for next radio station. When in FM  radio mute 
mode press and hold power button for 2 sec. to enable 
autoscan mode – wait until device stop switching radio 
stations, now you can simply press next/ previous track 
button to switch between saved radio stations.

Reset

If you encounter any problems or strange behaviour 
you can reset the device. Use straighten paper clip and 

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