Pat upgraded to a Motorola Moto Z with Android 7, but when he listens to music at home, it displays what he's currently listening to on the screen. How does it know? Leo says that the Android has an always listening feature that will pick up the ambient sound in the room and identify it. It's basically for the OK Google feature.
Pat had an issue with it playing a video unexpectedly as well. Leo says he can train it to just listen to only his voice, or he could even disable "OK Google" entirely. It'll be under Settings > Google.