Instruct: Classify a review into positive or negative sentiment.
Query: painful and fragile

I much prefer outside-the-ear headphones, even when working out, and I've long been a fan of Koss. The KSC75s, however, were not a good purchase. At first they were so tight that they hurt my ears. Then, as they loosened, the arms that hold them in place began to pop off. They can be re-attached, but they get looser and looser every day. I've had my pair almost three months and doubt they will last another three.[update, 12/20/2011. Three months and a day, and they're totally broken. I won't be buying another pair].