You'll need an mp3 player to use these things.
(You; 'll need; an mp3 player; to use these things) Context(You 'll need,List([0, 11))):(You; 'll need an mp3 player to use; these things)
You 'll need,List([0, 11))
You You
'll need 'll need an mp3 player to use
an mp3 player to use these things
these things