Schmitt & Ongaro Marine Deluxe SS Single Trumpet Horn - 12V. The Schmitt & Ongaro Deluxe SS Single Trumpet Horn is a great and loud way to let people know you're on a boat - without the dangers of dealing with a piercing loud horn blasting its horn on high volume. This powerful 12V horn from Schmitt & Ongaro features an advanced circuit that converts the signal from "ping" to "boom" with an amazing amount of volume in a small package. The Schmitt & Ongaro Deluxe Single Trumpet Horn features a reed that converts the signal from "ping" to a roar with a powerful built in "self-bailing" feature. This means you get the same great sound without the high cost of maintenance. Schmitt & Ongaro have made this possible with the included ground wire with four core wiring that is waterproof up to 2 meters. Install this Schmitt & Ongaro Deluxe SS Single Trumpet Horn with the included mounting bracket and 4M chokes and you're good to go. Specifications for Schmitt & Ongaro Marine Deluxe SS Single Trumpet Horn: Manufacturer: Schmitt & Ongaro Marine Color: Black Package Contents: Schmitt & Ongaro Marine Deluxe SS Single Trumpet Horn Schmitt & Ongaro Marine 10027: Deluxe SS Single Trumpet Horn - 12V