Check the listing for details. BOSS AUDIO MR50B BLACK 5.25" ROUND SPEAKERS (PAIR). Condition: New. Listed at 37.70 USD. 5.25" MR50B Speakers - Black - 150W A great sound makes these and designed to withstand the harsh conditions of the marine environment. All frame and grill sections are made of a polymer composite that is completely waterproof with a coating to protect against damage from UV rays. Rubber surrounds the body and polypropylene cones to complete the waterproof package. The tinsel leads are coated to prevent corrosion. Features:Weatherproof constructionPolypropylene woofer cone and treated cloth surround1" Mylar tweeter dome Technical Specifications:Speaker Impedance - 4 ohmsCone Material - Water-Resistant IMPPSensitivity - 89dBFrequency Response - 80HZ - 20KHZMax Power - 150W75 Watts RMSCut-out Dimensions - 4.94"Mounting Depth - 2.2" In the Box:Two (2) - 2 way speakersMounting hardwareInstruction manual *Sold as a Pair