I hear especially long MP3s (audio books, radio broadcasts) from the USB flash drive (as I have in the car Ratio USB, I have so the music always in your pocket it).
But unfortunately, the USB integration is not only "poor", but simply "unsatisfactory" grade. 6
The device remembers neither the position where it was within a MP3 file last (which can each cheap car radio), nor does it allow the user rewind within a file. Neither on the device or on the app it is possible.
That may be all the same for many, because they might not use USB. But honestly, if a manufacturer wants to be devices "high class" expensive, then you can probably expect the individual functions of the device are not installed halfheartedly, but peripherally and with attention to detail. One could simply omit USB, but USB install, and then install only the minimal functionality, is unacceptable to me.
The rest I then no longer tested, the unit went back immediately.
