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 Accessory: The kit comes with five strong trumpets, a 12V heavy duty compressor, hose, relay and mounting hardware, complete accessories ensure quick installation. 5.Wide Application: The trumpet is extensively applicable to truck, wagon, train, ship, vans and any other 12V vehicle to better meet your needs. Specification: Item Type: 5 Trumpet Air Horn Material: ABS Voltage: DC 12V Current: 20.0A Sound Level: 130dB Operating Pressure: 0.1Mpa-0.15Mpa Fitment: Suitable for truck, train, ship, vans, and any other 12V vehicle