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

Bought 4 pair. WHen they work they sound pretty good. But they each started losing sound out of one ear after about 4 weeks of use. Then eventually out of the other ear. Could jiggle the cord and get sporatic sound. Wires must shear easily causing a short.****** Update*****Company responded to my posting and did a great job providing an acceptable resolution to the issue. I will still purchase products from them. Key for me is a company that stands behind what they sell.