Pioneer DJ DDJ-FLX4 2-Channel DJ ControllerThe DDJ FLX4 integrates two new smart features to help beginner DJs start mixingSmart Fader and Smart CFX. Smart Fader allows artists to effortlessly transition between tracks with a simple glide of the crossfader or channel faders. After sliding the fader, the DDJ FLX4 automatically adjusts the tracks BPM, volume, bass volume and other aspects of the music to create a seamless transition into the next song. Artists can also spice up their favorite