Exactly what I’ve been telling the technicians. Sounds like subtle white noise, but it has to be at a very high frequency because my ear hurts ridiculously when I use it. One day I used it on zoom and IDK if is the way the zoom audio is, it was tapping in the ear like pulsating tinnitus, took the headphones out and was gone. It was only the left side. How is that we all have similar experience, all the left side and they still act clueless. If you check forums like this for the other products, the different types of AirPods and the beats earbuds, all of them have many clients saying the same thing and all are in the left. Is insane that Apple keeps ignoring it.