There are a few things you can do to change the sound of your car horn. The first is to change the horn’s type. There are three types of horns: manual, electric, and air-purifying. Manual horns use a button to turn them on and off. Electric horns use an electrical cord to turn them on and off. Air-purifying horns use a filter to keep the air out and make the horn louder. The next thing you can do is to change the frequency of your horn. There are three frequencies: low, medium, and high. Low frequencies are used for emergencies or when there’s a lot of traffic around you; medium frequencies are used for normal conversation; and high frequencies are used for driving or when it’s time to stop. The last thing you can do is to change the volume of your horn. There are three levels: low, medium, and high. Low volumes are used for emergencies or when there’s a lot of traffic around you; medium volumes are used for normal conversation; and high volumes are used for driving or when it’s time to stop.