The DDJ-FLX2 is our lightest and most compact DJ controller. It runs on USB bus power, so there’s no need for an external power supply when you connect it to a PC/Mac or a mobile device* via USB Type-C. You can start DJing easily by playing music through the built-in speakers of your PC/Mac/mobile device. Or, if you plug speakers into the audio output terminals of the DDJ-FLX2, you can throw a loud party with friends.