Accumax Global offer a range of products aimed to increase your Site Safety. Air Horns and Megaphones are ideal for conveying important messages clearly and warning of emergencies in louder environments. Our battery-powered portable megaphones have an audible voice range of approximately 250m for the ER520S and 315m for the ER1215S, both with additional loud sirens and long battery life. The air horns are simple to use and produce a powerful sound at 120db. Perfect for safety wardens during evacuation procedures, our line of air horns includes the Rechargeable, and Disposable. We also have two varieties of megaphone, with the larger ER520S and the smallerER520S.