汽车上都装有喇叭 ,用以警告行人和其它车辆 ,提高警惕 ,注意安全。喇叭按发音动力有气动和电动之分。电喇叭因声音悦耳 ,体积小 ,质量轻 ,被广泛用于各种车型 ,一般安装在发动机罩内或车头外部。从外形上看有筒形、螺旋形电喇叭和盆形电喇叭。无触点电喇叭以其显著的优点在高 The car is equipped with a horn, to warn pedestrians and other vehicles, to increase vigilance, pay attention to safety. Speaker according to the pronunciation of power pneumatic and electric points. Electric horn because of the sweet sound, small size, light weight, is widely used in a variety of models, generally installed in the hood or the front outside. From the appearance of a cylindrical, spiral electric horn and basin-shaped electric horn. Non-contact electric horn with its significant advantages in the high