喇叭是一种汽车信号装置,它的主要功能是在车辆行驶过程中用来示警行人或周围车辆,保障车辆的安全行驶。目前国内普通使用的是有触点电喇叭,随着电子化及无触点化技术的迅速发展,作为有触点电喇叭的替代产品,无触点电喇 Speaker is a car signaling device, its main function is used in the vehicle driving process to alert pedestrians or vehicles around to ensure the safe driving of vehicles. At present, the common domestic use is the contact horn, with the rapid development of electronic and non-contact technology, as a contact with the electric horn alternative products, non-contact electric La