How exactly do freestyle machines work? (the process? special cups etc)

[Merion_Mom]

49 minutes ago, twodaywonder said:

You can also go to any bar. Your card has the info on it for the bartender. He will fill your special container or just ask for a glass of whatever you want.

 

But your choices will be extremely limited.

 

And the OP's question was "how does the freestyle machine work?"

[ALWAYS CRUZIN]

I said what I did because so many replies about the lines. I know what the question was.