Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT BUY!

When I bought these headphones, I chose to ignore all the negative reviews about the right side of the headphones. DO NOT buy these headphones, those reviews are correct. After just a few months, the right side of my headphone completely stopped working. I do not abuse my headphones nor use it that often, maybe once a week.Also, please think hard about comfort before buying these headphones, like many reviews have pointed out. THEY WILL HURT YOUR EARS just after 10 minutes. I'm asian and my head is not big at all, these headphones are REALLY TIGHT on your head and they will give you headache. My little brother experiences the same thing.The two years warranty is not that good, why? because I just checked out USPS today and it will cost $10 to ship with confirmation number. I tried USPS and they told me it will cost $16 to ship, almost the cost of the headphones. I live in california and the shipping is to Connecticut.