Spec-D Tuning AH-6052-2 5PC 12V 125Db Chrome Car Truck La Cucaracha Musical Air Horn+Compressor Comes with 1 set of polished chrome musical 5 air horn/trumpet kit with 10-13 psi air compressor. Melody sounds like "La Cucaracha" Designed for weather resistant. Provides powerful & loud sound. 5x air horns/trumpets, 10-13 psi air compressor, relay, air tubing, bolts, nuts and mounting brackets are included. Professional Installation Recommended, No Instruction Included