Chromecast built-in
With Chromecast built-in, you can cast media content from your phone, computer or tablet. You also can use your mobile device or tablet as a remote and control playback and volume.
How to cast to Android TV?
1. Make sure your device is connected to the same Wi-Fi network as your Android TV.
2. On your device, open a Chromecast-enabled app.
3. Tap the Cast button 
4. Tap the device to which you'd like to cast (Tap on your Android TV).
5. The Cast button will turn color.
Note. For more information about Chromecast built-in, please visit https://www.google.com/chromecast/built-in/
Screen mirroring
MAG425A also supports mirror casting. Casting your Android phone or tablet screen lets you mirror your Android device to the TV. More information about screen casting and list of optimized devices for Android Screen casting see here.
