I'm looking for a simple, cheap and small MP3 player for gyming or jogging. Music and voice only (no video needed)

Small enough to clip onto clothing. I have earbuds with a 3? mm plug.

I don't REALLY need a readout, as a screen always seems to increase the size of the player.

However, I guess it would be useful to visually navigate through the loaded albums and tracks, so a small one might be useful.

Suggestions would be appreciated :-)