a small fete can thus be the best will not provide sound, as touted in the item description.
in good German: who wants more power, which must have initially reject on principle the MP3 function with such a device.
to the music softly trickle, the device very comprehensive feature rich and sufficient.
If you are a teacher, such a device to consider, so that's probably not for you. except: You have 5 square meters in a quiet student 20 classrooms.