The DDJ-FLX4's mixer section inherits its layout from Pioneer's professional line of mixers, with a gain knob, 3-band EQ, Color FX (CFX), a channel fader, and a crossfader. Beat FX can be applied to either channel, 1 or 2, or to both simultaneously. Each deck includes a large jog wheel, loop functions, assignable performance pads, a tempo slider, and cue and play/pause buttons. The front panel provides a 3.5mm headphone output, while the rear panel offers a ¼" microphone input and a stereo RCA master output. Two USB ports are available. One is for the host connection to a computer/portable device, while the second is dedicated to power the DDJ-FLX4 when using with iOS and Android devices. A USB-C cable is included

rekordbox and Serato Compatibility
You can perform using rekordbox or Serato DJ Lite for free by connecting your PC/Mac to the DDJ-FLX4. DJs looking to upgrade to Serato DJ Pro can buy a license or subscription for the premium version of the software.

Multidevice Support
The DDJ-FLX4 is compatible with a host of devices including Windows and Mac computers, iPhones and iPads, and Android phones and tablets. You can use the controller with rekordbox for iOS/Android when the update becomes available in early 2023 and connect to the device via Bluetooth.

Portable Design and Professional Layout
The layout of the controls on the DDJ-FLX4 makes it easy to learn how to DJ, since the controls are inherited from professional Pioneer DJ products. Everything is simple to use and neatly arranged, which also makes the controller compact enough to take anywhere you want to practice or perform.

User Intuitive Smart Mixing Features
Don't know how to mix? Don't worry, you can get started right away with the Smart Fader feature, which automatically adjusts the volume, bass volume, and BPM of the music, so you can smoothly transition from one track to the next by simply moving the channel faders or crossfader. This means you can have fun straight away and get a grasp of other fundamental DJ skills such as EQing. Plus, with Smart CFX, you can put your own stamp on every song by simply turning a knob to apply a combination of effects that will add drama to the sound.

Seamless Integration with Music Streaming Services
rekordbox is compatible with a different choice of streaming services. Depending on the DJ software you use, you can choose from millions of tracks available on TIDAL, Beatport Streaming, Beatsource Streaming, and SoundCloud Go+ platforms (subscriptions required) and mix them together on the DDJ-FLX4. You can use all the effects and performance features to spice up your favorite songs and create your own sound.
USB Audio Output for Microphone Sound

The DDJ-FLX4 removes the need for a separate mixer or soundcard as the controller mixes the microphone audio with the music. These audio capabilities make the DDJ-FLX4 an ideal choice if you are looking to livestream your sets as you can perform using only the controller.

Specifications

Main Features
Compatible DJ Software
rekordbox for Mac/Windows
rekordbox for iOS/Android (coming early next year)
Serato DJ Lite
Serato DJ Pro(License/subscription not included)
Software System Requirements
Visit serato.com for its specifications.
Visit rekordbox.com for its specifications.

What's in the box
DDJ-FLX4
Quick Start Guide
Precautions for use
Serato flyer
USB Type-C cable
Warranty (for some regions)
Specifications
Frequency Range
20 - 20000 Hz
Width
18.98 in
Height
2.33 in
Depth
10.74 in
Weight
4.63 lb
Soundcard
16bits/24bits, 44.1 kHz/48 kHz
Signal-to-Noise Ratio
103 dB
Distortion
< 0.005 % (USB)
Power Consumption
Via USB power adapter: DC 9V, 3A
Via USB bus power: DC 5V, 500 mA
Performance Control
Channels
2
Deck Control
2
Trim knob
Yes
Jog Wheel
111.6mm
Beat FX
Yes
Sound color FX
Yes
Sampler
rekordbox 16 slot / Serato DJ Lite 4 slot
Hot Cues
rekordbox 8 / Serato DJ Lite 4
Pad Modes rekordbox
Hot Cue
Pad FX 1
Beat Jump
Sampler
Keyboard
Pad FX 2
Beat Loop
Key Shift
Pad modes Serato
Hot Cue
Pad FX 1
Beat Jump
Sampler
Roll
Auto Loop
Manual Loop
Yes
Auto Beat Loop
Yes
Terminals
Inputs
1 MIC (1/4 inch TS Jack)
Outputs
1 MASTER (RCA)
1 PHONES (3.5-mm stereo mini jack)
USB
2 sets USB Type-C port (PC/Mac connection & power supply ×1, Only power supply ×1)