Even though most states don't restrict wearing headphones while driving, doing so is antithetical to basic road safety. Wearing headphones while driving — especially if you cover both ears — severely hinders your ability to hear things like sirens, approaching cars and honks. Aside from the danger, driving while using headphones also puts you at risk legally, even if the activity itself isn't outright banned. Driving with headphones can be viewed as negligence, even with an accident you didn't cause. At the end of the day, there's really no good reason to be driving with headphones on — the risks far outweigh any benefits.