I believe the correct term is a 'Ouija' board.
They are very dangerous to use, because you are actually talking to demons... no matter who they say they are.
I believe this because my grandmother used one, and it told her she would have twins, a boy and a girl... she had not yet had an ultrasound of any kind. It was true.
They are not to be taken lightly... Ouija boards are not toys, and if you're not careful, spirits (demons) WILL take advantage of you.