The Numark MixDeck Express DJ Controller features dual USB flash drives, two CD decks, and an integrated three-channel mixer. It is compatible with AIFF, WAV, and MP3 file formats. This Numark device is designed for professional DJs. It is equipped with touch-sensitive platters that enable DJs to mix and scratch with ease. Other features include looping and hot starts, built-in effects, and a USB port for software control.