*KeyFeatures *Premium Quality: Our loud train truck horns kit is composed of zinc chrome-plated material and carbon steel body to ensure maximum strength and durability. It is can withstand harsh weather conditions or extreme temperatures with trusted quality and lifespan. *150dB Loud Air Horn: The loudness of these air horns for trucks and trains can reach up to 150 decibels. 4 different size stainless steel horns emit a super loud warning, audible from several miles away. With such a strong sound, it is the most effective and safest way to alert others of your presence. *120 PSI Compressor: This air horn comes with a 3L / 0.8 gallon air compressor equipped with an automatic safety protection design, which will automatically stop pumping when the air pressure reaches 120PSI inside. Besides, it is equipped with 4 vibration pads and a 30-ampere fuse under the mounting leg to avoid hazards effectively. *Easy Installation: This train horn for cars is easy to install with all mounting hardware included. It is flexible and portable, so you can easily detach it from one vehicle to another. In addition to basic components for your quick installation, there are additional sealing tapes and a 6.56ft/2 m extra hose for your replacement and other use. Professional installation assistance wont be needed. You can use them anytime and anywhere. *Wide Application: The 4-trumpet train horn kit is compact enough to fit most vehicles, such as cars, boats, trucks, tractors, vans, motorcycles, etc. It is highly suitable for large vehicles in heavy traffic or emergencies. ******************************************************************************************************* *Specifications Pressure Switch Settings: 100 PSI on, 120 PSI off Overall size: 385 mm (L)*137 mm (W)* 183 mm (H)/15''*5''*7'' Max pressure: 120 PSI Max Amp: 18 A Horn Overall size: 345 mm* 155 mm* 165 mm/14''*6''*6'' Tank capacity: 3 Liters Trumpet length: 165 mm, 225 mm, 290 mm, 345 mm(6'',9'',11'',14'') Duty cycle: 15% Trumpet width: 90 mm(4'') ******************************************************************************************************* *Pakcage Content 1 x 4-trumpet air train horn 1 x compressor 1 x hose 1 x fuse 1 x sealing tape