cow horn1.Briefintroductionof Snail speaker Model of SP90D(W), (Dual-toneandSingle-tone)Electronic,Waterproof,suitableforfix,Multi-voicetoselect,itissuitableforall the cars.2.Diameter from85mmto110mm3.TECHNICAL PARAMETER:RATED VOLTAGEDC 6V/12V/24VCURRENT CONSUMPTIONMAX 4.5AFUNDAMENTAL FREQUENCYL 410HZ H 510HZSOUND LEVEL105DB4.Certificate:ISO9001-2000Certificate,FactoryCertificateandOriginCertificate5.OEMandODMpolicyaccepted