A:Answer Id be iffy on this one. When I've been running, next to traffic and with wind in my ears, it would be hard for folks to hear me. Not sure how it would work if you cut the wind with, say, a helmet and such. But at least my pair picked up background noise too... just recently my Dad had to hang up on me because he could hear a baby crying 4 aisles away from me when I was at Costco.