Negative Positive
Title: worthless
Review: I bought this at Ace when I moved my home office upstairs and was unable to hear the doorbell. I've had this product for over 5 months now, and no amount of adjusting will make it work. It will go off if the dog barks near the transmitter, or when we run the vacuum, but never when there's someone at my door. Very disappointed. A waste of $30.
Is the review positive or negative? 