Herdio 120W Outdoor Speakers Waterproof - 4 Inches Marine Grade Mount Speakers For Home, Boat, Poolside, Patio, Indoor Outdoor100% WATERPROOF : This 4 inch marine outdoor box speaker set has a strong waterproof, features corrosion and stain resistant mesh grills design, allowing you to to use it during you sail time even in the severest weather conditions, Install them in your wall cabins in boats, kitchen, spa tub, hot tub, bathroom without having to worry about the moist environment! ADDED BASS RESPONSE: A fashion design with 120 watt ( pair ) peak power, frequency