Marine Sound System: Make sure that even rough waters and tough weather alike do not hinder your sound quality with this set of marine stereo speakers built to outlast others Speaker Specifications: Each marine speaker measures 2.125” x 6.875” (D x W) with a diameter of approximately 6.5”; Maximum power is 140W with an RMS power of 65W Features: Marine stereo system has an impedance of 4Ω with a dual cone design that allow the system to handle high frequencies complete with a magnet to match Durability: Marine radio speakers are certified for marine use and is built to withstand saltwater, weather, and UV rays alike with its magnet made of polypropylene and ferrite Easy to Use: Marine amp speakers include removable grille that can be painted to match your style with front or rear mounting that allows you to adjust depending on the situation