Deluxe Megaphone with Siren - Red/Grey - 16W 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. Specifications Wattage 16W Max.. Effective 800 feet. Powerful solid state megaphone. Built-in switch selectable electronic alarm siren. Pistol grip. Press-to-talk switch. Volume control. Shoulder strap. Durable weatherproof construction. Operates on 8 C cells (not supplied). 9.1 Bell Diameter x 14.25 Long. 3lbs 4oz w/o batteries