Not only did I dance, I headbanged. I shook my head side to side, I tossed my hair, I jogged in place, and I looked silly doing all of it. The AirPods stayed put, and they stayed loud. The music (more Sia, naturally) sounded full and lush and I couldn’t hear a single word anyone around me was saying, as if I was completely sealed off in a bubble of rock and roll. Pretty impressive.