I've ridden with 2 ear plugs, 1 ear plug, and music ear plugs in 1 ear and 2. 1 ear plug is the best, a) because it's legal and b) because I can still hear my motor and cars around me. I love listening to music while riding but the issue is you have to turn it up loud enough to hear so by the time you accommodate it's louder than the exhaust lol I have a pack of 10 or so of those little foam plugs, I just put 2 in my little change pocket, that way I have it with me for riding or if I go to the range (I always forget to bring earplugs)