Feature 1With 4 trumpets, designed to blend sound and sound quality. 150dB sound level, it will produce a super loud alarm to ensure your safety on the road. 2Made of highquality steel alloy materials to ensure durability and strength. Finished in shiny polished colors, protects it from corrosion and weather conditions. 3Equipped with 12V/24V solenoid valve, suitable for 12/24V vehicles, which can meet the needs of your vehicle. 4It can be widely used in different vehicles such as trucks, van, trains, ships, automobiles, pickups, etc. 5Easy to install, simply install it on your air compressor. The air nozzle on the solenoid valve is connected to the air source of the vehicle (to ensure that there is no air leakage).Item Type: Air Horn Material: Steel Alloy Chrome PlatedSound Output: 150dBPower Supply: 12V/24VApplication: Suitable for all 12V/24V cars, motorcycles, boats, RVs, trucks, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Air Horn1 x Buckle1 x Adapter1 Pack of Mounting Screw (12pcs)