This Eagle 20 W Handheld Megaphone has an audible distance of up to 800 Meters. The megaphone is manufactured from high grade ABS plastics and is ideal for all weather use, includes a microphone, volume control, wrist strap and siren. Due to a very high SPL this unit is only suitable for outdoor use or very large indoor areas. Powered by 8 x AA batteries not supplied Amplifies voice projection upto 800m For Indoor/outdoor use Volume Control Built-in Siren Tough ABS Housing Batteries: 8 x AA batteries Colour: Light Grey and blue Depth mm: 340 Detection Range m: Outdoors up to 800m Height mm: 320 Net weight kg: 1.05 Peak Music Power W: 20W Power W: 20W Power RMS W: 20W Product Dimensions mm: 320x200x340 Weight kg: 1.2 Width mm: 200