| The loudness of these air horns for trucks and trains can reach up to 150 decibels. With such a strong sound, it is the most effective and safest way to alert others of your presence. [High Quality Horn] The Air horn has bigger coil, Upgraded Air Compressor, high-quality chrome plated zinc alloy material, stronger air pressure give the air horn louder and more clear warning to other's driving actions. [Strong Durability] Chrome Plated ZINC Trumpet, All-copper coil, and train horns the metal trumpet and compressor are weather resistant, all kits are designed for long time service. [Fit 12 Volt Vehicle] This Air horn fit most cars, Truck, SUV, Motorcycle, Yacht, Boat, off Road Vehicle, Buses etc … | |