Instruct: Classify Amazon reviews into positive or negative sentiment
Query: These things rock!

I have never written a review of any product, but since I use reviews all the time, I thought that I would take a moment and give my opinion. For the money these would be hard to beat. I am not sure what people are talking about when they say they pinch. They feel good to me and sound great. If there are any cons, they are a little bit heavy.ThanksNathan