This bundle includes a Rockford Fosgate PMX-RGB Color Optix Light Controller With Optional App Interface, and 2x Rockford Fosgate RGB-25 25 Ft Color Optix Extension Cable. The PMX-RGB controller provides LED lighting control over speakers and subwoofers, allowing you to create a marine ecosystem. Customize the color and lighting effects with the RF Connect app. The controller supports up to 8 speakers or subwoofers, and the app supports multiple Color Optix controllers. The RGB-25 extension cables make installation easy, extending the distance between the controller and speaker by 25 feet. The cables have an Element Ready connector. Upgrade your marine audio system with this high-quality bundle.