The mini megaphone is a lightweight, compact unit which can be easily stored for use in emergencies. A vital piece of equipment for fire wardens and fire marshalls, this megaphone is made from a rugged ABS plastic and can carry sound up to 250m. Featuring a siren function to grab the attention of those in danger, this battery powered megaphone also has a built-in microphone and press-to-talk trigger for ease of use.