Problems:
1) the screen is a mirror. One sees absolutely nothing behind. There is no way to set the background to black, which would help. No. Background purple must, green, gray, blue, etc. must not be black.
2) the wheel does not respond to movement, no. It responds to acceleration. If you turn the wheel slowly, nothing happens. Then one turns faster and just two Menupositionen have jumped away.
3) buttons have two functions, depending on how long they are kept. So if the button is "quieter" a little longer and the same has been chosen "backward".
4) letter size 1mm. Unreadable. DIN standard for texts are 2mm. No normal human being except perhaps children can read 1mm.
I have bought many chiniesischen products and they all have sick operation and invisible displays. Fiio is therefore no exception. However, it is a miracle regarding the price for sound quality. Fiio sounds like an 120dB converter with a 1,000-euro headphone amplifier. Even very poor headphones sound better with it!
