Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice design, but poor quality

I bought this set of headphones to use with my iPod while jogging. I like the black & white color and compact folding design, but the poor quality of craftmanship drops its rating substantially. First, the headphones could not be used with the treadmills at the gym because they would build up static electricity and shock the ears (the classic yellow ones that came with the Sony Walkmans years ago never had that problem). But even given that limitation, I would have still given this product a 3 or 4 star rating if it were reliable. However, the left speaker went out after only 5 months, rendering the headphones unusable. Sony provides only a 3-month warranty on this item, of course. In contrast, I still have a set of the old-style yellow Sony Walkman headphones that are still working fine (it just doesn't match the color of my iPod).