These speakers are designed to survive anything the outdoors can throw at them while still delivering crystal clear, high quality sound season after season and year after year. The AW construction is what make these speakers the ideal choice for outdoor applications. Constructed of weather resistant materials such as UV-resistant talc impregnated polypropylene injection molded cabinets, Hycone treated speaker components, powder coated aluminum grilles and all brass hardware, these speakers are virtually bulletproof and have passed 100 hours of salt spray testing per ASTM B117 standards.