This type of call was made years ago, Wisor and Latham and others made them. The call is opened and the bottom flipped over and you ran the peg over the slate like you would a pot caller or jet slate call. My call is different in that I incorperated a soundboard inside, this offers a better sound in my opinion. Yes it is a purrin' machine, and it is quiet, but it can do everything a pot call can, just in a smaller and more quieter version. You have the striker and call all in one......