I honestly don't see why would you want an mp3 player whatsoever. They are overpriced and outdated by today's standards since most of them are not being manufactured anymore.
If I was you I'd simply buy some cheap second hand phone with fucked up screen or whatever with that 50$ and use that instead.
However if you really want an mp3 player for some reason
I'd suggest this. I have personally used it few years ago and it served me well with 16 GB storage and ~5 hours of play time when fully charged :)
Oh and also if I remember it right it has an sd card slot as well
Last edited by Smaguris; Jul 12, 2016 at 08:14 AM.