Continuity Camera
A feature that lets you use your iPhone or iPad’s built-in camera and microphone 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 either 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.