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A new feature that's shipped with iOS 5 and one that's available on the iPhone 4S or later and the 4th generation iPod touch or later, is Video Mirroring. This is a feature that lets you display whatever you see on your phone to an Apple TV, making it easy to share anything you can see on your phone with an entire room of people on a large screen. This requires you to use a second generation Apple TV or later that's connected to the same network as your iPhone. I have an Apple TV connected to this TV behind me and it's on the same wireless network as my iPhone. To mirror my screen through the TV, I just need to double-click the Home button on my phone.
That opens the multitasking area, which I showed you how to use earlier in this chapter. I'm going to flick to the right two times to bring up this area of the multitasking bar and here I'll find the AirPlay icon. I tap that to see a list of any available AirPlay devices my phone has detected on my network. So here's my Apple TV. I'll select it and I'll slide the mirroring slider to On and that's it. I'm now wirelessly mirroring my iPhone screen on my TV. Meaning, whatever I see on my phone is also what I see on the TV screen. When AirPlay mirroring is On, the top bar of your screen turns blue to provide a reminder that you're streaming whatever is on your screen to your Apple TV.
This can be really useful if you want to display a document or email that would otherwise be impossible to show a large group of people on your iPhone screen. For example, I have a spreadsheet document here. You can see I'm looking at it on my phone, but also on the screen, and if I change the orientation, it goes to wide screen. It also works really well with some games. So in this sense, AirPlay mirroring essentially turns your iPhone into a wireless game console.
Now, there's generally a tiny lag between the iPhone's display and the Apple TV's, so this isn't an ideal set up for really fast moving games, but it's sure to work fine under plenty of other circumstances. Now, I should also mention that if you experience some intermittent playback issues or more significant lag, you might want to try turning Bluetooth off on your phone as it can sometimes interfere with AirPlay streaming. You can do so by going into your settings, into Bluetooth, and just making sure it's turned off. When you want to turn off mirroring, just double-click the Home button again, slide over, select the AirPlay button, and select your iPhone again.
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