Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of money

After installing this product I disappointingly watched cats, dogs, birds, and squirrels play around it in my yard with NO effect. The red light turns on when it senses motion, so it is "working" - or at least it has power. The animals walk right past it, I see the sensor light turn on, and their ears do not even twitch.This is a waste of money and time. Do NOT purchase, it has no effect on any small animal.