iPad iPad Pro 10.5 clicking sound after put headphone

[punn0123]

My iPad Pro 10.5 has clicking sound around 5-10 sec after put some headphones (I tried around 3 sets). But the problem not happens with some headphones e.g. wired earPod. It also was random command like pause, moving forward when I shift or rotate the jack headphone but it's gone but still have clicking sound. I have tried to another iPad on Apple store and it has this sound too. Anybody have an idea what's wrong of this iPad model? Because it never happened with my iPad 2017 model.

 

[Newtons Apple]

Making this sound may not be an indication of a defect.

 

[punn0123]

Making this sound may not be an indication of a defect.

But how the sound happen?

 

[leebroath]

If this is wireless headphones I sometimes heard a clicking noise with my Bose QC35's noise cancelling

I presumed it's just the headphones being a bit off with the air con in the room Offshore