Instructions for entry-level functions
1. Five working modes
The M21 has 5 independent working modes: Android mode, Pure Music mode,
Bluetooth Receiving mode, USB DAC mode and AirPlay mode. It is defaulted to
be the Android mode, which can be switched to other working modes in the
drop-down menu.
If the player is in other modes but not the Android mode, you can switch it to
other modes through the selection on the display, or tap Settings->Exit to go
back to Android mode.
Android mode
Third party applications will be available at will. It can be switched to other
modes on the drop-down or settings menu.