Instruct: Classify Amazon reviews into positive or negative sentiment
Query: FX60 - Disappointment

There is an annoying buzz in the sound system while using the FX60. Removing the white transmitter card from the home theater box is the only way to get rid of the buzz; of course this disables the FX60.If this is typical for other users, then the FX60 may not be a good investment. I don't recommend it.