Pros: Well, I can't speak for longevity, because i just broke these out of the package, but WOW. This is the first pair of aftermarket headphones I've owned (but not the first audio system) and they blew me out of the water for only 20 bucks. The "Live Bass" system doesn't add to much bass, but makes up where other earbuds leave a gap. I'm hearing things in songs that I've never herd before. I'd say get um while there cheap!

Cons: Haven't had them long enough to say...