When you’re using your iPad and want to send the signal up to the big TV in your living room via Apple TV and AirPlay, you can double click on the Home button, swipe to the right, and you’ll see the Media bar, with the brightness, volume, orientation lock, and AirPlay destination settings.
But on the iPhone, when you swipe once to the right, all you’ll see is the orientation lock (or Mute, if you’ve set your hardware switch to lock orientation), and the play, forward, and reverse buttons for media playback via the Music app. Where is the AirPlay setting button? And what about a volume slider?