With the Pioneer DJ DDJ-FLX4 + Pioneer DJ HDJ-X5 Black + Pioneer DJ DM-50D-BT Black, you can mix your favorite songs live in front of an audience. The headphones make it possible to pre-cue your mix, which means that you can prepare your mix with transitions and effects without the audience hearing that. You can hear detailed and clear sound from the headphones. The audience will hear the end result via the speakers. The grooves on the channels of the speaker reduce air resistance, so the bass sounds stronger. You can connect the speakers via the RCA connector or via the Bluetooth to the controller. The controller is suitable for advanced DJs because of the various possibilities with effects and your own microphone. Because of the clear control panel, you can easily control the controller. You can use all types of effects in your mix with the included software. This way, you can make many different mixes.