Open Control Center on your iPhone or iPad
Tap Screen Mirroring
Select your AirPlay-compatible device
Enter the AirPlay passcode if prompted
On Mac, click the Control Center icon in the menu bar
Click Screen Mirroring
Select your AirPlay-compatible device
Enter the AirPlay passcode if prompted
On Apple TV, go to Settings
Select AirPlay and HomeKit
Turn on AirPlay
On a compatible smart TV, open the AirPlay settings
Turn on AirPlay
Make sure your device and AirPlay device are connected to the same Wi-Fi network