SAFETY-SPORT ADMIRAL AIR HORN FOR: Boats, Sports, Construction Sites, Factories, Personal Home/Office Alarm & more. 120 db of clear loud sound that can be heard for a mile! 8 Ounces, 100% Ozone Safe. Meets USCG requirements for boats up to 65 ft. (20m) Be Heard with Safety Sport Air Horns... Simply the Best!