The AmpliVox S604 lightweight, battery-operated megaphone with strobe and flashlight functions can be an essential addition to your emergency kit. It has a comfortable pistol grip with three modes; talk, whistle and a built-in penetrating siren for emergency use and is powered by alkaline batteries. The safety strobe megaphone is 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; this megaphone is specially designed and built out of tough ABS plastic, which makes it perfect for fire and police departments, state and federal agencies, marine environments and event organizers.