· Fitment：Car horn compatible with Hon-da Cars .· Include：2 Pieces high and low tone car horns + 2 Pairs special connector + 1 Pair brackets· Car Horn Voltage：12V Sound level:110dB-125dB Frequency：410Hz/510Hz(±20Hz) Material：Plastics + Pure copper wire· Easy to install：The utility model can be directly used by inserting the public plug into the original bus master plug without breaking the line，make installs quick and easy.We provide more than one horn plug. After receiving the horn, please check the connector of the original car horn first, then install it after finding the same plug.· Service: If you have any problem, feel free to contact us, our professional mechanic will sort things out for you.