“A PA (Public Announcement) system serves as a crucial communication tool in public spaces, venues, and institutions by broadcasting clear and audible messages to large audiences. It consists of microphones, amplifiers, speakers, and sometimes digital interfaces or software for centralized control. Designed for clarity and reach, these systems ensure announcements, alerts, and emergency notifications are effectively conveyed to everyone within the designated area. Modern PA systems often integrate with other technologies like digital signage, mobile apps, or emergency response systems to enhance communication versatility and efficiency. They play a vital role in enhancing safety, operational efficiency, and public engagement across various settings, from airports and stadiums to schools and commercial complexes.”