The Apple TV is a digital media player and is connected to your TV or your monitor screen. With Apple TV you can play any digital content on the connected TV or monitor screen. Apple TV supports for example the iTunes Store, Netflix, Hulu Plus, YouTube and more depending on the country you’re living in. Furthermore, it is available on HD and allows iOS devices or AirPort-enabled computers to stream music to multiple (3 to 6) stereos in your home. You have plenty of possibilities to remote control your Apple TV.
Your iOS device can use the free app “Remote” to control the iTunes library via Wi-Fi, you can use the included Apple Remote or use your Wireless Keyboard that can connect to your Apple TV via Bluetooth.