Many people have complaints about the plastic part near the metal sliders breaking, I've had these dropped and thrown around on a daily basis for about 2 years and they've never broken. The wires that lead into the jack have ripped apart at the end and the wires are slightly exposed, but nothing a little glue wont fix and a little extra care would ultimately prevent. The only part I would consider poorly constructed is the cloth material that covers the speakers. The cloth hasn't completely come off and probably never will, but it has fallen off enough to where hair and other debree can get underneath and reach the speaker.It would be nice if they where noise cancelling. In a car or on a walk the extra noise makes it diffucult to hear. You might have to turn up your volume to hear and i sometimes fear it might cause hearing damage.Other than that these headphones are excellent.