Preparation before use
Exterior view
1, MENU key:
refers to the Menu key. The menu will pop up after pressing this key,
and then enter the next interface after confirming (Enter or Exit). Hold the key to go
back to the main interface.
2,
key
:
choose the previous option or file.
3,
key
：
choose the next option or file.
4,
key
:
refers to the Play/Stop key, playing the role of backspace key sometimes,
that is to say, back to the previous menu from the submenu.
5, VOL
key
:
Volume key, to activate it and then increase or decrease the volume.
6, Switch on/off:
Long press
to turn off or on.
