Cortex ushers in another first in a revolutionary new era in digital DJ technology — no more laptops, books of CD's or flight cases of vinyl, this is a USB-compatible Digital Music Turntable/Controller. Simply show up to the club and hook up your pre-loaded USB storage device such as a flash drive, external hard drive, or even an iPod and you're ready to rock the house. Just plug in and play! The CTRL-R1 puts state-of-the-art power into the hands of DJ's. Use Cortex's “intelligent music database management” system to find any MP3 or WAV file on your storage device lightning fast by artist, title, genre, even by words or phrases; play them with ultra-precise pitch resolution.