Hi,
I bought a pair of these headphones about five years ago and they have been used almost daily.
They are incredibly light and comfortable and the sound quality is amazing with no secondary amplification required.
I use them with my Laptop, iPod and other audio devices that have a 3.5mm stereo output socket (including my Sony TV).
My only minor problem was that the foam covers on the earpads wore out, (after four years use!), so I simply replaced these with easily obtained cheap replacements from Maplin.
I don't think that Creative manufacture these headphones anymore and so I am getting another pair whilst stocks last at Amazon.
Regards,
Robert Swanson