Very good review especially comparing it to the original X3 and the ever popular mini DAP the M0. Thanks

Hello,
Thank you for this info.
Do you think when it is printed on the box supports "ISO formats" but not "IOS" that it will support M4a?
I might be way off base?
Sorry I am reading all I can but as have thousands of M4a files from old Ipod use, want a new DAP to support them as I slowly rerip my cds to Mp3 320 and, or lossless.
Is it always the case that brands will list M4a supported and if not will not work?
Thank you, RH

Hello @revhed.

I just tried a few m4a files and plays them without problems (AAC codec).

See you.

There is new firmware X3II V1.2 at official XDUOO pages: http://www.xduoo.com/xduoo/uploadfile/X3II_V1.2.rar
Change log:
Firmware updated contents:
1.Fixed the problem that it can not incomplete display the cover.
2.Add the function that it can auto-play when you start your car if you setting the X3II to Car_play Mode(Note: you need to set the "Breakpiont Play" to "Track" or "Location" in Music Setting)
3.Update the Language Library
4.Optimize system