Same problem with QC15 here, to the point that I can’t use them anymore. I had to use them in our open office to get anything done but the ringing in my ears go

Same problem with QC15 here, to the point that I can’t use them anymore. I had to use them in our open office to get anything done but the ringing in my ears got pretty bad. Working from home and not listening to music has helped a bit.