Feature: 1. Wide Application: Our air horn is designed for external use and is very suitable for marine applications, and it can also be used in other vehicles with 12V DC power, such as cars, SUVs, trucks and motorcycles. 2. Super Loud: Single trumpet can produce sound as loud as 150DB. The great sound effect can blare out powerful warning and catch everyone's attention, which is very practical. 3. Reliable Material: Single trumpet is made from stable and tough zinc alloy, and the surface is brightly polished and will not rust, suitable for all weather. 4. Durable Serving: This air horn is made to ensure maximum strength and sturdy performance, which is durable and portable. 5. Convenient to Use: The installation process is easy and quick, and no complicated drilling or tools is required, which is both time saving and effortless. Specification: Item Type: Single Trumpet.Material: Zinc Alloy Voltage: 12V Current: 10A Resistance: 5Ω Operating temperature: -40-80℃Fitment:Fit for cars, trucks, boats and all types of motorcycle1. This product is suitable for all models with air source devices. 2. The working current of the control relay must be greater than 10A. 3. The section of relay main power cord is greater than or equal to 2.5mm; Output line is not less than 1.5mm; The negative electrode (iron) line should be in good contact to ensure the use effect of this product. 4. The horn air source should be directly introduced from the air tank to achieve better sound quality; the air tank must often discharge water to affect the service life of the solenoid valve. 5. The service life of this product is more than 100,000 times. Package List: 1 x Horn1 x Pack of Accessory (9PCs)