Your listeners can really boost their sound and get even more out of your custom app with Chromecast for Android devices.
With the Plus and Pro plans, your app will be upgraded to include support to cast your app's screen to a TV with the Chromecast player installed, or other wireless smart TV.
Audio from your device will play over the TV's sound system or connected home theatre system and the device screen is mirrored on TV.
How to do it?
Open your app on your device and turn on the TV you want to connect to.
Swipe down from the top of your Android device's screen and select the "Cast screen" option.
3. Your Android device will ask you which connected device you want to Cast to and you're all set!