I'm bringing back this old post, as I purchased some AirPods Pro last month and have recently noticed some slight ringing in my ears and think it could be related. The ringing is constant, but I don't really notice it unless I think about it (like right now). I notice it the most while laying in bed before I fall asleep, likely because there aren't many other sounds in the room. I've never been diagnosed with tinnitus and my previous wireless earbuds, Bragi’s The Dash, never caused an issue.
I saw an article that for some people, active noise cancelling can cause headaches and other negative reactions, so this morning I disabled it to see if it helps. I'm not sure if I should keep trying this route or just completely switch back to my old earbuds to see if that makes a difference. I may actually go with the latter, as it's getting annoying and a bit disconcerting. I'm hoping that after a few days or so, I can get the ringing to completely go away. I haven't been listening at high volumes (as it's primarily been audiobooks and podcasts) so I doubt that's it. If it ends up being the AirPods, hopefully I can return them.
Any updates or advice is appreciated!
Update (1/20/20) - The slight ringing is still happening, even though I haven't used my AirPods Pro for 5 days. Maybe it's something else? I'm going to keep an eye on it a little longer and if it continues, will check with my doctor.