Product Description:Features:- The horn air compressor is equipped with large coils, stronger air pressure and fast response speed. Stable performance, easy to install, and match your car horn. The air pump assists the horn to emit a loud warning sound..- A good horn must be equipped with a air pump! Integrated design, waterproof and sealing. It can work in fresh water or salt water environment and is suitable for almost any weather conditions..- Upgrade the motor copper wire terminal, the copper coil combination, better conductivity, full power, and more outstanding effect. Suitable for every 12V vehicle horn .- The upgraded internal structure can produce a deeper and higher tone. It is stylish and unique, sufficient for daily use.- The air pump is easy to connect and does not take too long. You only need to splice the wire of the positive terminal to the original speaker wire or the horn switch on the dashboard, and then splice the wire to the negative wire, and make sure to connect the hose.Voltage: 12VCurrent: 15AOutput: 14 - 18 PSIWork Air Pressure: 0.08~0.12mpaLength: 4.3 inchesDiameter: 2.3 inchesPlace of Application:Air Horn Car/ Truck / VehicleProduct Weight : 430 G / 15.17 OuncesProduct Dimensions (L*W*H) : 98*48*18 MM / 3.86*1.89*0.71 InchesPackage Weight : 440.0 G / 15.52 OuncesPackage Dimensions (L*W*H) : 115*71*71 MM / 4.53*2.80*2.80 InchesRetail Packaging: Yes, Carton PackagingPackage Include:1 x Air Compressor