Move over, Jay-Z: 50 Cent wants to be the next big rapper-turned-mogul. His new company, SMS Audio, is launching with a mini-line of headphones. The headphones come in blue (pictured) or black for $299.95 and white for $399.95. They're available for preorder now and ship starting December 5, if you're in the market for a holiday gift for a DJ.

At that steep price, they'd better be offering something really good. According to SMS, the headphones "utilize Kleer wireless technology to streamline and share the music experience, allowing up to four listeners to simultaneously rock from a single source." But how do they compare to Beats By Dre?