Deluxe Megaphone with SirenER370Our 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. SpecificationsWattage 16W Max.Effective 800 feetPowerful solid state megaphoneBuilt-in switch selectable electronic alarm sirenPistol gripPress-to-talk switchVolume controlShoulder strapDurable weatherproof constructionOperates on 8 "C" cells (not supplied)9.1" Bell Diameter x 14.25" Long3lbs, 4oz w/o batteries