The voice modification that allows vocal voting. I've read about it, it means blind people don't need someone to read the ballot to them and have other people know how they voted.
Then brail, but Oklahoma ballots don't have brail. And if you don't know brail, congrats, you are a very unfortunate human being who must be judged mentally incompetant and are thus not allowed to vote.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)