Auto air horn 12V and 24VDC CE,CCC.CQC OEM Snail auto air hornTungsten contact pint, 100% copper material.Specification Voltage(V)12VDC,24VDCCurrent(A)≤ 4 × 2Frequency(Hz)H=510 ± 20 , L=410 ± 20Sound level(A)105-118dBDiameter(mm)Φ 90ApplicationGeneral PurposePacking40 sets/carton Snail type auto air horn