FaceTime for Mac: Choose which camera or microphone to use for FaceTime
If your Mac is connected to external cameras or microphones, you can choose which one to use for your FaceTime audio and video calls.
In FaceTime, choose a camera or microphone from the Video menu.
If there aren’t any cameras or microphones listed, FaceTime uses the built-in camera and microphone.
SEE ALSO
Use Apple Diagnostics or Apple Hardware Test
Last Modified: Sep 22, 2016