Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sounded good while it lasted

They sounded good while they lasted. Unfortunately, they lasted under six (6) weeks. Costs $6 (plus your shipping cost) to get warranty replacement. That's more than half what I paid for them.Pro: good soundCons: wire for left side broke at plug, tended to fall out of my ears, Koss warranty costs