It's a board with lots of letters and a little circle thing. You hold the circle in your hand and press it on to the board, and supposedly spirits guide your hand to letters to try to send you a message. However, you're really just moving your own hand and not being completely aware of it, or you're bringing it back to the store and asking for a refund.
u better get some pokeballs ready incase a Haunter attacks you ;)
wee-gee boards used to scare me. Still do in fact... :/