In line battery worst idea ever.
Don't pay retail for these things. If they're on sale cheap, they're ok sounding and work well if you sit at desk all day or are just chillin'. Don't forget to turn off the stupid driver control or it may be dead when you listen next. You can't also tell when the battery is dying, they can't play the bass anymore. If you work outside or ride, that inline battery is always in the way. You can make better sounding headphones without that thing, so Skullcandy should.