10 Subwoofer Ultramarine - BlackThe Polk UMS108B subwoofer uses air suspension technology to deliver 700 watts of power in a sleek, waterproof and UV/corrosion resistant package, perfect for life on the water. Features:Black housing and grilleAir Suspension DesignCast Aluminum BasketHigh Temp Voice coilXKGlow LED Light Ring (Compatible with XKGlow Controller w/ App Support)White Grille, Bridge, and Trim RingSnap On Grille Installation OptionSilver ConeInsulated Tinsel LeadsWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.