Manual page
Press and hold for power on/off.
Press once to lock the button functions.
Press once again to unlock the button functions.
Press to move to the next menu.
Press to increase the volume or move to an
upper item/menu.
Press to move to the previous menu.
Press to reduce the volume or move to a
lower item/menu.
Press to select Play/Pause and a function,
or move to the next screen.