Car speakers are more popular, there are many owners mistakenly believe that car horns and horn appliance is the same, in fact, there are significant differences between them. Appliances speakers are generally in the room, the living room of this small temperature difference between indoor place to work, while the car horn is working outdoors, with the temperature difference between the weather changes, so the car horn manufacturing materials to be anti-aging and temperature structure can not be deformed. Horn appliances use less dust environments, while the car is in a dusty horn. Under the environmental work, so the speaker coil structure is completely sealed to prevent dust and voice coil friction noise. In the rainy season, the car horn at any time by the threat of wet, so be sure to proof car speakers, audio discs are mostly used synthetic materials. Appliances and car horns horn acoustic response is different, appliances speakers use complex environment is not a car horn, taking into account a variety of interior noise and reflection, the material used will vary in pitch angle of the design is also different . The difference between the above will determine the price of a car horn trumpet much higher than home appliances, home appliances and the speaker mounted on the car is absolutely impossible.