I am a music teacher and I use itunes from my computer for most of my recorded music and albums. I have my computer (Windows) hooked up to a smart board, which I use as my classroom speakers. I would like to move to a wireless system in my classroom. I'm thinking either an ipod or possibly an ipad mini (although now that I'm thinking out loud, maybe an iphone 6+ without carrier - would give me a bigger screen without having to go to an ipad) to wirelessly broadcast my music to the smart board. This would also allow me to show video, etc on the smart board. What kind of setup would I need/use? Should I get an airport express, airport extreme, or Apple TV? Can I have some personal opinions/advice about how you would set this up? Thanks.