Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buyer Beware

I purchased these earphones 4 months ago. They were working well and I was happy. Then a couple of weeks ago I noticed the coating on the wires was disintegrating. My husband put electrical tape over the bare wires but the coating is continuing to disintegrate below the repair. The warranty from Sony is 90 days so I am out of luck. Don't purchase these earphones! Something is defective in the coating of the wires.