Continuity Camera
A feature that lets you use the built-in camera and microphone on your iPhone or iPad to connect wirelessly with Apple TV 4K (2nd generation or later) for use in the FaceTime app 
or other apps that support it.
Note: Continuity Camera requires an Apple TV 4K (2nd generation or later) with tvOS 17 or later and one of the following: iPhone XR or later (including iPhone SE 2nd generation) with iOS 17; iPad (8th generation and later), iPad mini (5th generation and later), iPad Air (3rd generation and later), iPad Pro 11-inch (1st generation and later) or iPad Pro 12.9-inch (3rd generation and later) with iPadOS 17.