i took a set of their headphones apart a couple of months back to try and fix them for a friend and they actualy glue bits of metal inside them to make them heavier so that people think they are better quality than they realy are, i think they are probably more of a fashion statement than anything else.
if you are in the market for a good set of headphones i would seriously look at ones made by GRADO even their entry level headphones are astoundingly good in a way that the most expensive skullcandy could only dream of