We offer vibro sonic horn is available in single piece as well as pair also. It is 126 mm in diameter, which makes it suitable for various automobiles such as jeeps, trucks, etc. Specifications : vibro max 214dia 156 mmvoltage12v24vcurrent consumption4.0 a3.0 afundamental frequencyhigh tone505 hzlow tone425 hzsound pressure level110 db (a) pairrecommended to use inmotor cyclecar, truck, lcv