As technically very versed contemporary I needed about four hours of sampling and studying (the instructions for use provided for me was not helpful informative in all areas, but some tips in customer reviews were helpful) to the device reliably cope. The effort has paid off. Now everything works great and I have a lot of fun to the player. He works well and provides a good sound. Maximum pleasing are the time-saving when searching for songs folder functions, in conjunction with my radio recorder with USB port. I now find the device for about three weeks in operation every day and can no defects. Only the supplied earphones should soon replace possible to better.