Screen Mirroring is a utility developed and updated by ImsaTools. This application lets you display your Android device on other displays like modern TVs.
Once you've opened Screen Mirroring, you'll have to turn it on and choose what display platform you want to use. Screen Mirroring currently supports popular platforms like Chromecast, Miracast, and more.
After you've connected to a popular platform, you'll need to find the media you want to display and play it on your phone. From there, you'll be able to display that content directly on any other display you're using Screen Mirroring for.
Overall, Screen Mirroring is useful but many of the display platforms like Chromecast can make this application useless in some cases.