Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 2nd time is NOT the charm

I had a pair of Portapros for years and years. When they finally wore out, I didn't feel bad replacing them. I bought a second pair on Amazon last year (2012) and the wire at the plug has already broken on them despite careful use. Reading the Sportapro review, the plug seems to be a weak link and I'm afraid that the Portapros have the same issue now. It's really a bummer, they used to be GREAT. Not sure what to replace them with.