this is crap. I bought one about one year ago, which was some $20.

PX100 is a very high quality headphone. Stereopiles know all about this. I brought one and really amazed how detail it sound.
What-HiFi and Headroom.com rated this one of the best portable headphone money can buy.

PX100 for less than $35 is very good price.

i have these and they're decent, but my titanium pro 35's from radioshack circa 2000-2001 were better. the new 35's arent as good IMO though. bottom line is to not listen to anything, since theres nothing good out there anymore.