Wolo (367 The Voyager Ocean Liner Horn - 12 Volt Produces three ultra-powerful, 30-watt, Ocean Liner horn sounds One touch of the keyboard sounds your choice of three different Ocean Liner horns If you want to attract attention with a powerful horn sound, Voyager should be your choice Built with the latest state-of-the-art electronics to ensure years of reliable service Easy to install in any 12-volt vehicle or boat