What is Zaudio?

Hi friends

Sorry for the very basic question but I have no idea what this Zaudio is in my control panel?

I can see that plugin came with the core and says play MP3 for users, but I can't see any MP3 option in my whole site, then I thought maybe If I upload MP3 song in File option then that Zaudio would play for me. So I uploaded MP3 song into File but I can see there is nothing like player for MP3 only option is to download the file..

I would like to know how Zaudio really works? I know I'm not that new to elgg anymore but dealing with Zaudio first time, would be thankful if you can explain to me.


Many thanks in advance