Black 3 Trumpet Train Air Horn And Compressor/Tank kit. This Horn system produces a High Powered Sound of 152 decibels. Trumpets are metal powder black painted. Will replace your original horn, or can be installed as an auxiliary horn. Comes with a 1.5 gallon air tank and 12 volt 150 PSI heavy duty 50% duty cycle maintenance free air compressor. Includes mounting hardware, brass connecting fittings, high pressure air hose, electric air valve solenoid, air gauge, air pressure switch, installation instructions, FREE horn button. Ideal for vehicles such as Trucks, RV's,SUV's, Boats, and many more applications. Produces a loud 152 decibels train horn sound that will almost crack anybody’s ear drums.