Someone has probably tried changing the mic and also added a jack. There are a few YouTube videos covering disassembly/reassembly of v2, v3 and other Wyze cams. Obviously, this voids the warranty, but if you have spare cams, they make good projects. I have 5 v3 Pro cams. Their audio in/out is acceptable. If you document a successful mic replacement solution, please share by creating a new topic in the Tips & Tricks category. There is also a wishlist topic covering ideas for an external mic feature: Add capability for an external USB microphone.