Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Speaker didn't work - had to return it

I am another person who couldn't even set up the unit since the speaker didn't work when I opened the box. It might be an okay unit, but since I received a defective one, I will never know. I saw others had received defective units, but thought it wouldn't happen to me. I took a chance and lost. Seems like AT & T has a quality assurance problem if they are shipping lots of units with problems. Steer clear...