Speakers Suitable For Both Indoor And Outdoor Use. Supplied In Pairs. Built With The Following Features: ? Neodymium Magnet To Improe Acoustic Sensitiity; ? Treated Rubber Suspension; ? Kapton Coil Supports; ? Chrome Metal Basket And Gold-Plated Terminals; ? Stainless Steel Mounting Screws; ? White Plastic Anti-U Grille. Compliant With Directie 89/336/Eec.