Android screen mirroring refers to any kind of casting process that turns one device into a live display for another. That means you can use your phone as a second screen for your TV at home by connecting them wirelessly with Airplay or HDMI cables, or you could use it as a microphone to create videos on YouTube hands-free by simply turning your phone around and pressing record.
Android screen mirroring work by transfering the media you're playing on your smartphone onto your TV over a Wi-Fi connection. It are often through with an HDMI cable, its far convenient to mirror to the TV wirelessly with none cables.
