When I select my camera in a video call, I can see myself, but the remote particpant can't see me. When I switch to my laptop camera, they can see me. We are both on Macs. On the remote end, with an external camera, the remote participant could not see themselves, but I could see them. I tried several other video conferencing platforms (zoom, meet, skyp, etc) with these cameras and the they work fine. It does not require driver downloads.