Schmitt & Ongaro Marine Deluxe SS Shorty Dual Trumpet Horn - 12V. One of the most popular uses for this type of horn is on sport fishing or PWC as the reed system helps avoid runaway engines. Schmitt & Ongaro Marine created this particular model with four trumpets inside and four trumpets outside so it blows in the direction you're blowing. To ensure effective and efficient use of battery power there is a circuit board inside. For a reliable and enduring horn that performs admirably in a variety of scenarios get this Schmitt & Ongaro Marine Deluxe Shorty Dual Trumpet Horn. Specifications for Schmitt & Ongaro Marine Deluxe SS Shorty Dual Trumpet Horn: Manufacturer: Schmitt & Ongaro Marine Voltage: 12 volts Color: Black Package Contents: Schmitt & Ongaro Marine Deluxe SS Shorty Dual Trumpet Horn Schmitt & Ongaro Marine 10012: Deluxe SS Shorty Dual Trumpet Horn - 12V