Twist-Lock Speaker Grilles: Club Marine Speakers have two grille color options in the box, with a twist-lock design so you can match the grille color to your choice. The design hides the mounting fasteners so your installation results in a clean finish. Outdoor Performance & Marine Rated: JBL uses marine-grade materials & components to suit the demands of harsh outdoor environments, with IPx5 marine rating from front of speaker, and accentuated performance at frequencies heard in open-air environments. RGB Illuminated Speaker Cones: Unique and eye-catching RGB illuminated speaker cones are capable of displaying seven colors, when hard-wired to your vessel lighting, or you can have even more color options when wired to an external lighting controller. Balanced Silk Dome Tweeters: Weather resistant silk dome tweeters, with bridge mounted design, deliver a high-frequency response and increased power for highs and mids, which equates to more clear sound from vocals, cymbals, brass instruments and pianos. Designed for the Elements: Their one-piece polymer basket is designed to stand the test of time, even after exposure to the sun and salt. Rubber surrounds & polypropylene cones offer superior protection and are more reliable than foam or treated paper. Individually Voiced: For many brands, off-the-shelf speakers and a cursory approval of frequency response curves are good enough. That’s not the case with JBL. We not only listen to our speakers against the competition, we voice them against each other. Environmentally Friendly Quality & Performance: With JBL, we use extreme care to engineer environmentally friendly marine-grade materials & components to overcome the demands of the harsh marine environment, while meeting RoHS 2.0 & TSCA requirements.