What's In The Box: 1 x 10" (250mm), ea., with integrated grille. 6 x Screw. 6 x Speed clip 1 x Spanner. 1 x Closed cell foam gasket. 1 x LED cable. 1 x Owner's manual. 1 x RoHS sheet General Specifications: Power Handling: 300 watts RMS, 900 watts peak power Sensitivity: 89 dB at 2.83 volts. Frequency Response: 20 - 2kHz Voice Coil Diameter: 2 in. (49.5 mm). Impedance: 2 and 4-ohms, Switch Selectable Impedance (SSI ) Infinity's Kappa Marine loudspeakers leverage Infinity's world class audio engineering and music reproduction with purpose-built marine loudspeakers that will survive the rigors of the harsh marine environment. The lineup features the three most popular sizes for boats and watercraft. The 6-1/2" coaxial, 8" three-way convertible speaker system and 10" woofer have Plus One polypropylene woofer and midrange cones, Mylar tweeter domes (Except Subwoofer), one piece cast polymer baskets, sealed magnets, and rubber woofer surrounds for high SPL performance. Wind, water or engine noise will not drown them out. Speakers are UV resistant in a marine grade IPX3(IPX5 from front)weather resistant and include RGB perimeter illumination and go through 300 hours of salt spray testing. And they're Infinity - ready to make amazing music on the water. Whether it's a daily scrub down, a picnic in a quiet cove or an all-out race across high swells, Infinity has the right configuration for your craft.