Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Sound/Short Life

As the title says the sound that these earbuds produced was great sound (if you like deep bass). They only produced this great sound for about 3 months though; which is a huge problem for me if you pay $20 for them. The worst abuse these earbuds got were bike rides and sitting at my desk at work. Actually I was sitting at my desk when the left bud started shorting out (going from loud to soft, and completely producing no sound). The sound and price make them a pretty good deal, but the amount of time they last makes them a rip off.