Instruct: Classify Amazon reviews into positive or negative sentiment
Query: No Sound

When I received this item several weeks ago it worked fine. Since then the sound quit working and you can't record. I called the company and after dealing with a less than friendly service rep, he finally gave me an RA (return authorization) number so that I would have the priviledge of mailing the unit back (at my expense) for a replacementClassco Classco Caller ID Announce