Pros I bought these for an MP3 player (Sansa Fuze). I expected lots of bass with a 50 mm driver. I was surprised to discover that the unit did not have heavy bass, it had extremely clean and detailed electrostatic-like bass and over all fine sound.
Cons Frequency response not totally flat; however, it is reasonably corrected with the graphic equalizer in the Sansa players. A synergistic combo. Light weight but fit not perfect for everyone. Reasonably comfortable.
Summary As a result of the unusual clarity, this has become my musical reference headphones. Pushing the bass with the equalizer does not distort the sound. Reasonably well constructed. I have not note the aforementioned wiring problem.
Pros 50mm drivers, excellent bass, sturdy construction
Cons Cheap wiring
Summary I bought these a year ago for $20 from FYE Music....they sounded great with perfect sound range and bass (considering the price). They were built fairly well, and the plastic hinge components were much more stronger than even my Pioneer HDJ-1000's (after they broke I got the Coby ones cause I didn't want to waste more money for the same quality). Despite the lack of swivel in the ear cups other than up and down, they were still well worth the price paid. However, after 7 months the main cord severed from inside the plastic casing. I bought a new longer cable and rewired it myself, and it worked fine for another 3 months before the wire linking the right ear cup to the left had the same internal severing. The culprit is simply cheaply manufactured and thinly insulated wiring...the plastic insulation dries out, cracks, and the wires end up getting cut. Overall though, if you're willing to put the time and effort to rewire them yourself, these are an excellent pair of home use or minor studio use headphones.