Mpman BT20 - Manual (Page 14)

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2. REC Volume: Five options of +1, +2, +3, +4 and +5.
The higher level, the larger recorded volume.
*When recording, please disconnect earphone to
improve the recording effect ;
*The recorded voice files can be found in Music Play menu
and play to try the effect.
*If the screen displays “Full Space”, it indicates that there is
no space for new recorded file, please delete other files to
release more space.
Explorer
Navigation is a resources manager which can help you to
know all files in MP3 player for convenient management.
You can select the music, movie or text file to enjoy it
directly. For example:
Bluetooth setting
After you enter into Bluetooth menu, the Bluetooth will
automatically turn on and search Bluetooth devices. BT
devices will show in PAIRED DEV LIST. And then you can
choose the Bluetooth device to connect.
Turn on/off Bluetooth function: Touch “>” and “<” button;
Scanning Bluetooth device: Long press “ ” button;
Delete Bluetooth device: Long press “M” button;
*Important: Bluetooth just support Music playback
mode. BT function will automatically turn off when end
user use Video, Picture, Radio and Record functions.