I usually clip my tiny mp3 player on the waist band of my shorts. Okay without music when running shorter distance. When running 4, 5 hours, I need my music definitely, it is a torture otherwise. I cannot stand hearing my own breathe for that long. But I did a marathon last Saturday without music (rules), all I heard for 26.2 miles was wind blowing noice and the my poncho rubbing against my body.