I am talking about this notification:

![](https://i.imgur.com/FcZaeG7l.png)

Somehow SoundCloud (the website) makes this notification appear and it has working controls. I do not have the app installed, that notification originates from `com.android.chrome`. I don't really *need* to know this to reproduce it, but I'm curious as to how it accomplishes this and perhaps in what other ways you can use it.