The law for HEADPHONES requires you to have one ear free (In Cali). Then again I've been pulled over thus far two times and haven't heard a peep about sporting ear buds in both ears. I don't know of any of my friends who ride who have been pulled over OR ticketed for wearing headphones or ear buds...
Here in Southern California the freeway speeds move rather quickly and the once or twice in the past couple of months where I don't wear my ear buds on the freeway, the wind noise is alarmingly loud! I wear noise canceling ear-buds and that allows me to:
A) listen to music on a very low volume and still hear it
B) block out a majority of the wind noise and still have the ability to hear what's going on around me.
