The VRG-LUH15TX speaker assembly features a cast aluminum grille with secondary stainless steel perf, and includes a mounted Unihorn® with weather-resistant housing engineered for versatile labor-saving installation in brick, concrete block, plaster, or drywall (indoors or outdoors, recessed or surface-mount). For paging and general voice communications (25V, 70V, 100V or 8ohm). Ideal for school intercom systems (25V).