Rockford Fosgate M1 6” Color Optix™ Marine 2-Way SpeakersNow, in color! Give your evening outings on the water a vibe with Rockford Fosgate's M1 Series 6" marine speakers. Built in illumination brings these speakers to life and they can be coordinated with other Color Optix speakers and subs using Rockford Fosgate's Color Optix Controller (not included) and RF Connect App. And Element Ready These marine speakers sport rugged grilles that can tough out years in the sun and spray and still look great.