content: I bought two pairs of "Surround Sound" headphones that turned out to just be Stereo sound or had uninstallable drivers. One of them the USB plug didn't even work. Than goodness they included an 1/8 inch headphone jack for stereo sound. Returned both of them within a few hours of getting them. The sad part is they were both pretty comfortable to wear, they just didn't live up to the advertised features.