Our 16 watt deluxe megaphone features a built-in switch selectable electronic alarm siren, pistol grip, press to talk switch, volume control, and shoulder strap. It is weatherproof. It uses eight C-batteries, which are not included. Technical Specifications Bell Diameter 9-1/8" Effective Range 800 feet Length 14-1/4" Wattage 16 Watts maximum Weight 3-1/4 lbs. without batteries