Vishal Profin Private Limited manufactures Public Address Sound Reinforcement System. Vishal Profin Private Limited supplies fire-protection equipment like Alarm System, Emergency Lighting, Fire Extinguishers, Gas Suppression System, Glow in Dark Signages, Hydrant System, Water Spray System [MV] and Sprinkler System. The Public Address Sound Reinforcement System is an Audio System for an auditorium or a room. The PA system has portable systems that can be used almost anywhere. Public address system is an electronic amplification system used as a communication system in public areas a simple PA [public address] system consists of a microphone, an amplifier and one or more speakers.