Need to make a big noise, but only have a little room? These dual truck horns can fit in almost any vehicle, but deliver the big sound you need. Don't be fooled by their size ... they may be small but they pack a punch that can rival any air horn out there. Our specialized compressor kits will make your horns really sing. All of our compressor systems come complete with a 12 volt compressor, air tank, pressure switch and mounting hardware. These compressor kits are built for performance and easy installation. This kit comes with a sealed 150 PSI air compressor and a 1 gallon air tank. Pressure switch, compression fitting, and safety valve are included. The compressor comes with a remote intake filter so the compressor can be mounted on the outside of the vehicle. We also include a wiring kit at no cost! All kits Include high pressure nylon air tubing, a discreet push-button for activating the horn, and complete installation instructions. Product may not work in vehicles manufactured for sale outside of U.S. & Canada.