I recently tested my Airpod Pro's reach. I was seated in the front of the plane, seat 4F, listening to my playlist. Left my phone behind and went all the way to the back of the plane inside the toilets.
It was like i never left my phone.
[816375]
Discussion
Why is it they always say to turn off cell service in the air? I've never really understood that, except for the fact that your phone can't receive service at altitude anyway.