Piezo Megaphones

All three models in this line have the new Piezo dynamic technology, making these lighter and louder than other megaphones.::The Megaphone Hailers are great for use in high noise areas and large open spaces. Use it to direct emergency crews and alert crowds. Use at road races and other outdoor sporting events or rallies. These megaphones are specially designed and built out of tough ABS plastic which makes them perfect for fire and police departments, state and federal agencies, marine environments, and event organizers.::All models have a comfortable pistol grip and 3 modes: talk, whistle, and a built-in penetrating siren for emergency use, and all are powered by alkaline batteries (not included).