The SP219 Unidirectional Sound Projector is the perfect solution for your PA System needs. This sound projector offers clear sound, superior to that of normal horn speakers, making it ideal for car parks, corridors, and other outdoor spaces. The aluminum body of this projector ensures durability and longevity, making it a great investment for any PA System. With the SP219 Unidirectional Sound Projector, you'll be sure to get the sound quality and performance you need.