When you really, really need to be heard over a crowd, you need the Mega-Sound Megaphone in your hands! It will project up to 200 yards and has a volume control and speak/off switch. But even better, this megaphone has a 10-second recording feature with repeat and internet playback. It also features a built-in siren for emergencies. It has a weather-resistant ABS construction and a folding handle with a lanyard. It requires four C batteries (not included).