The Speco Technologies ER390UMB is a matte black, 20W solid-state megaphone for amplifying your voice up to 1000' in distance. It offers a pistol grip, a press-to-talk switch, a volume control, and a built-in siren. You can also record a ten-second loop of yourself and play it on ...The Speco Technologies ER390UMB is a matte black, 20W solid-state megaphone for amplifying your voice up to 1000' in distance.
It offers a pistol grip, a press-to-talk switch, a volume control, and a built-in siren. You can also record a ten-second loop of yourself and play it on an infinite repeat with the press of a button, thanks to the USB recorder. You'll need eight C batteries to power the megaphone.
These batteries are available separately, but a carrying strap is included. The megaphone should provide a four-hour battery life.