On an iPhone or iPad, you can turn off AirPlay from the app you're streaming by tapping the AirPlay icon and selecting "Turn ...

You can turn on AirPlay to use on your Mac computer through the System Preferences app's "Displays" menu.

It's also great for users of tablets and phones, (iPad, Samsung, Android) to know what's possible on the computer version. This platform is great for busy professionals, networkers (eg BNI) and ...