1. Loud Double Tone Internal Recirculation Design, Maximum Capacity, Loudly Warn You Of Others, And Provide A Certain Level Of Safety For Driving. With Our Horn You Can Reduce Unnecessary Injuries.^2.Waterproof Material Abs Polymer Material, Strong Corrosion Resistance, Waterproof, Will Not Rust And Cut When It Rains.^3.Lightweight There Is No Bulky Air Compressor, Just A Small Device That Produces Incredible Sound. So Compact^4. Easy To Install Our Horn Is Equipped With Screws And Brackets. It Makes The Installation Easier For You; It Only Needs Electricity And Reduces Electricity Consumption.^5. Wide Compatibility The Pull Horn Is Suitable For Almost All Vehicles. While It'S A Perfect Upgrade For Trucks, Our Horn Is Also Compatible With Suvs, Cars, Ships And Motorcycles. ^