Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good, works perfectly

The shipping was fast, the product worked, and it even came with batteries. I'm very satisfied.I go to UC Davis, and they require this clicker for my BIS2A class. At the student bookstore, they charge $51 for a new clicker, and $30 for a used one. I was pretty glad to find it so much cheaper online.