cons the interface is not bad but the only complaint I have is no

Interface works well enough

Product works as expected with highlighted by plenty of storage capacity (easily amendable), various category options, easy user interface, compatibility with multiple file types, and the ability to adjust various sound elements

Perfect, Great Interface, Xlnt sound and bass, More than 30ft Lossless Bluetooth distance with walls in the way

Still not as warm and as open as I remember the Fiio (even via bluetooth) to be but much better than my iPhone obviously.

I list it as a positive.