Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Only works if your dog is stuffed

I have several of these. Unfortunately, I purchased them all at one time, hoping to put them in various areas of the house. I have FIVE dogs. Doesn't work with ANY of them. It did --- for a few hours --- but they seem to get used to the high pitched (we can't hear it) sound, and they ignore it. Don't waste your money.