The DDJ-FLX4 2-deck controller from Pioneer DJ is a highly compatible performer that proves its worth with beginners and professionals alike. It boasts the same authentic Pioneer DJ design as other professional models, and adds an exclusive Smart Mixing feature for easy and immediate use. With its rekordbox compatibility, syncing your music library from your phone or favorite streaming service is a cinch. Best of all, the DDJ-FLX4 comes complete with an audio output for microphone sound, entirely eradicating the need for a separate mixer. If youre on the lookout for a standalone DJ controller with potential on any stage, then the DDJ-FLX4 is a serious contender.