Equal first, of a star is something "unfair" because the device for other users is excellent safe. On radio or CD functions, I will not go into. They're all excellent. (Also MP3 CDs work fine!) I've been looking for a compact device with amplifier and speakers, with which I can play stored MP3 audio books on a USB stick. Unfortunately, the other reviews this shortcoming has not been mentioned, or did I miss it. The MP3 player of this device can sort the files on a USB flash drive not by date, file name or MP3 tag. The files will be played within an album in the order in which they are physically stored. Who knows Windows and FAT, know that you can also copying not rely on alphabetized files are stored in the Reiehnfolge on disk. Etc. This shortcoming the lack of MP3 sorting by Tags have only very old and cheap MP3 players. That is why it is disappointing, almost incomprehensible that such a device like this to be unable. I would of course can also be 3 or 4 star, but I suspect a lot of people read first the 1-star bad reviews to find out the most serious flaws. I turn therefore to everyone who would like to hear the MP3 audio books or MP3 music in a certain sequence and rate of this unit off when you do not want to edit with old DOS tools the FAT table of the USB stick / Sort.