Posted by 4-Lom

https://images-na.ssl-images-amazon.com/images/I/31SNM16jSGL.jpg (Unsupported image host)

It's basically this. With a few more holes. So musically you get 1 octave, and your timing is limited to how fast you can 'tap' the holes on the flute. My understanding is that it's easier to play on android/ios, as you must use the mouse to tap notes on pc (which is annoying).