Feature 1Wide Application: Able to be compatible with all 300W siren/amplifier systems, a perfect replacement for broken or damaged horn with good performance. 2Aluminum Material: Made of high quality aluminum material with high strength and wear resistance, long service life, able to withstand most of bad conditions. 3Simple Installation: Easy to install with integrated universal mounting ring bracket design, only simple steps needed, will not take much effort or time. 4Powerful Tool: Loud warning sound with a level of 130dB, can be heard from a distance. Can be used for ambulances, cars, fire engines, etc., can let passersby out of the way in time. 5Package Content: The package contains only a car warning speaker, other accessories and tools need to be prepared by yourself, please make sure you are clear about this.Item Type: Electric HornMaterial: Aluminum AlloyColor: As Picture ShownApplication: For Truck, Ambulance, Road TrafficProduct Size: Approx.148(Dia)165(W)mm/5.8(Dia)6.5(W)inWeight: Approx.2350g/5.2lbVoltage: DC 12VCurrent: 15.0ASound Level: 130dBFeature: PA Speaker .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Siren SpeakerNote