POWER ACOUSTIK MARINE 850 WATT 8″ BLACK WAKE TOWER SPEAKER ENCLOSURES, WITH RGB LED AND REMOTE 100% WATERPROOF ENCLOSURE & SPEAKERS SYSTEM HIGH DENSITY ABS CONSTRUCTION W/ UV COATING POLYPROPYLENE SPEAKER CONE & TITANIUM TWEETER 4-OHM SPEAKER IMPEDANCE 850 WATTS MAX 425 WATTS RMS FREQUENCY RESPONSE 30HZ – 20KHZ SYSTEM EFFICIENCY 90DB(1W/1M) STEEL REINFORCED MOUNTING BRACKET SYSTEM FITS MOST TOWERS SWIVEL MOUNTING SYSTEM BRAIDED STAINLESS STEEL SAFETY CABLE INCLUDED INJECTION SPEAKER CONE & TITANIUM TWEETERS MEETS ROHS AND CE CERTIFICATIONS RGB LIGHTING FULL FUNCTION RF REMOTE CONTROL LED FUNCTIONS LEDS WITH 20 STATIC COLORS AND 22 DYNAMIC MODES DIMENSIONS (W X H X D) 10″ X 10″ X 9.6″ MOUNTING BRACKET FEATURES UPPER MOUNTING BRACKET LOWER MOUNTING BRACKET 360 DEGREE ROTATION POINT MOUNTING BRACKET BASE MINIMUM 1.26″/32MM SIZE BAR MAXIMUM 2.25″/57.15MM SIZE BAR INCLUDED IN BOX PAIR OF 8″ WAKE TOWER SPEAKERS WIRELESS RF FULL FUNCTION REMOTE MOUNTING BRACKET FOR EACH SPEAKER