Kahlenberg Industries manufactures type approved sound signals for vessels of all types and sizes.  Kahlenberg Chimetone horns have developed a worldwide reputation for their durability, distinctive sound, and exceptional finish. Utilizing more than one projector or "trumpet" in their design, these horns produce powerful and distinctive musical chords. Manufactured in the United States and distributed worldwide, Kahlenberg Air Horns are found on the majority of the world’s yachts.