A sound signaling device required on recreational boats to alert nearby boats in conditions of poor visibility. Its shape recalls that of the musical instrument.
Outside the cabin you will find hookup for city water, an electronic ignition water heater, a fire extinguisher, a trumpet horn, an LP cabin furnace with an interior thermostat control, pre-wiring for a generator and air-conditioning, marine-grade deck carpeting and a swim platform with pull-out ladder.
In English there two possible ways of defining this item: Horn and Trumpet horn according to its form, whereas in Italian the single term Tromba is used.