Features: 1.Super Loud: Equipped with heavy duty horn system, which can produce a deeper and louder tone, 130dB sound level, loud enough to give warn to other vehicles. 2.Parameter: With 0.1Mpa?0.15Mpa strong air pressure, makes a bigger, louder sound, ideal for the modification, replacement, repair of the original car horn system. 3.Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 4.Complete Kit: The air horn kit is equipped with necessary accessories required for installation, integrated design of the horn makes it easier to install. 5.Wide Application: The dual air trumpet is widely applicable to trucks, cars, yachts, trains, and other 12V vehicles, and more to meet your needs with louder sound. Specification: Item Type: Dual Trumpet Air Horn Material: Metal Voltage: DC 12V Current: 40A Sound Level: 130dB Operating Pressure: 0.1Mpa-0.15Mpa Applicable models: Fitment: Suitable for all 12V cars, trains, trucks, yachts, ships