Originally Posted by JonNYC
I love my Etymotic's and they do everything you want them to do-- almost all sound is reduced, both screamers and engine noise and the sound quality is unparalleled.
my ER-4s used to double as earplugs before i bought the ER-20. try wearing a pair of them at a F1 race; being able to hear the radio while 20 ear-splitting engines roar by will convince anyone these headphones are worth every penny.