Loud Voice: Our air horn have a powerful direct-injection mini compressors, no bulky air compressors, only small devices that can produces 18 PSI of air pressure. It can make a loud and immediately noticeable sound when connected to the battery, and the tunes are very nice. Excellent Quality: The high-quality ABS music horn tube and chrome plated zinc pump is non-rusting overall, good corrosion resistance and weather resistant, all kits are designed to serve for a long time. Plays Dixieland Melody: Musical horn plays the dixie melody, sounds like the one used on the General Lee from the Dukes Hazzard movie. Whether you want a musical horn for the special moment or just for fun, the Musical air horn has got you covered. Complete Kit: Almost everything you need for installing the air horn is included in packing, 1x 5 trumpet air horn, 1x Air compressor, 1x clear Air hose, 1x Set of mounting hardware, 1x Relay, 1x Relay socket, 1x Wire harness, 1x Fuse, 1x Inline fuse holder, 1x Button Switch, 1x Wiring instruction. Wide Application Range: Works on any 12v system, this includes most cars and trucks, SUV, Van, off Road Vehicles, Buses, Motorcycle, Yacht, Boat etc. Any issues with the item please email us by amazon any time and we will help you! AOLIHAN Five-tube Air Horns Plays Dixieland for Any Vehicle Musical Air Horn Kit with Wire and Button 12 Volt Car Horn Multi-frequency Sound Duke Hazzard