I drove more than 300 kilometers, and the road noise was loud enough to drown out the music. They are very loud when traveling at speeds between 40 and 70 kilometers per hour and 100 and 120 kilometers per hour. I truly hope that they will break in and at least become a little quieter, but I don't really think that the noise will disappear entirely. I am adding! I drove a couple of thousand miles, and the sound continued to lessen. I won't say that it's significantly, but it is a little quieter, and I'm used to it. In general, it maintains a good grip on the road and slows down appropriately.