It's necessary for an artist to use the best tools available. The art of turntablism demands high-quality DJ gear, so from mixers and media players to headphones and accessories, Denon manufactures only the best. The hard-drive based HD2500 Professional Media Player and Controller offers an all-in-one "nerve center" packed with features like an internal 40gb hard drive, external USB support, keyboard support and intuitive file navigation system, pitch range and deep pitch resolution, plus 7 built-in effects. Packed with features and adaptive to your needs, it's a must-have for any professional performance. Includes Denon DJ Music Manager software.