Lots of background static noise - defective?

New to the Wyze cams and have 3 V2 cameras and 2 Pan cameras. I noticed for both my Pan cameras that the sound I get from the mic has a lot of background noise and static. So much so that I can’t hear any clear audio when I try to listen in. Is this normal or should I exchange them?

I have the wyze cam without the pan. This sounds drives me crazy!!! I wonder if it is a setting on our router that could be changed.