Bigger IS really better, especially when it comes to sound. That's why we took a puny pair of earbuds, and created these to be 500 times the size of the original! How great will these look on your desktop alongside your mp3 player or PC? These giant un-headphones include a built-in amp. They can be powered by your PC's USB port with the supplied cord, by battery (not included) or plug it into the wall with a generic power supply (not included).