🔊 Make Some Noise! The Gong That Commands Attention! Built to withstand the rigors of industrial use while maintaining a sleek appearance. Perfect for schools, factories, and more—wherever you need to make a statement. Simply plug in and let the gong do the talking—no complicated setup required. Experience the booming 9-inch gong that commands attention in any environment. Easily connect to an electronic timer for automated alerts. 220V electricity operated 9-inch loud sound 4-5 seconds duration The Security Store Heavy Duty 9 Inch School Gong Bell is designed for loud, long-range sound, making it ideal for large spaces like schools, factories, and industrial areas. With a maximum sound duration of 4 to 5 seconds and compatibility with electronic timers, this 220V electric gong bell is both powerful and practical. Its durable construction ensures it can handle the demands of any environment.