Of course, it is easy to program the it as a normal MP3 player. there 2 nevigator butttons on the board, suitable for the Previous song/Next song/ confirm ;and the valume adjustment...

By now, it sounds good with 44.1K Hz stereo .wav

But a little awkward， there no volume adjustment function for the DAC

UDA1334ATS , i have to multiply all the data output with a "volume factor"(0~1) to adjust the volume.. the final result not good, there many noise the volume factor added /