Pyx Specification Material: ABS Technical support: Vehicle power: 12V.24V E mark rating: HIGH 410HZ Single speaker size: diameter: approx.9 cm depth: approx.9 cm Features: 60B Train Horn for Your Truck: The 60B Train Horn offers the loudest sound on

Description:【Easy to Install】Vehicle electric horn control unit is very easy to install, professional installation is recommended【Direct Replace】12V-24V Horn Controller Assembly is direct replacements for your damaged or old part【Adjustable Volume Level】Electric horn speaker controller, each sound effect has its own volume level, giving you the flexibility to choose the volume for any situation.install instruction:Red wire: button main powerBlack wire: negative poleBrown wire: Horn positive poleBlue wire: Horn positive pole【Fitment】Air horn controller suitable for most of the 12v 24v voltage cars, yacht, boat, suv, trucks, buses, vehicle, motorcyclesSpecifications:Color: BlackMaterial: PlasticsVoltage: 12-24VItem Size: 90 * 60 * 45mm