Pioneer Pro DJ DJM-900SRT DJ Mixer Equipped with an internal Serato certified soundcard providing the user with Serato DJ software control when connected to a computer Automatic Beat Sync captures the BPM of the music and beat location information resulting in effects that are perfectly synced with the beat of the music Six types of Sound Color FX for numerous audio effect combinations and arrangements Thirteen assignable Beat Effects that can be manipulated by two different effect parameter control knobs or be quickly accessed and performed via the X-Pad touch control High performance "MAGVEL" Cross Fader with adjustable cross fader curve and ultra smooth channel faders with adjustable curve