Electric auto air horn 12V and 24VDC CE,CCC.CQC OEM Electric auto air horn Specification Voltage(V)12VDC,24VDCCurrent(A)≤ 4 × 2Frequency(Hz)H=510 ± 20 , L=410 ± 20Sound level(A)105-118dBDiameter(mm)Φ 92ApplicationGeneral PurposePacking45 sets/carton Electric auto air horn