Instruct: Classify an Amazon review as either positive or negative.
Query: These headphones are a waste of your money

Forget running, these things fall out of your ear when you're sitting and listening to music. They're also extremely fragile. The music quality is pretty good for how cheap the price is. However, if they can last more than a couple of weeks, you've gotten more out of them than probably the majority of normal people that buy these things.