Feature 1The dualtone design of 410Hz low frequency and 510Hz high frequency, and the loud horn of 105db, make the sound have a strong penetrating power, which can improve your riding or driving safety. 2Adopting premium ABS material, resistant to high temperature, impact and corrosion, and with waterproof and dustproof cover, long lifespan. 3Using highquality tungsten contacts, it has good thermal conductivity and heat dissipation, and the inline copper pin design has good electrical conductivity. 4The highcontent manganese steel vibrating plate makes the sound of the horn more clear and pleasant, and basically no noise. 5With piano paint process, the base is more wearresistant and corrosionresistant, comes with connecting screws and brackets, simple to install on the vehicle.Item Type:EchoHornMaterial: ABSVoltage: 12VPower: 100WCurrent: 8AWorking Temperature: -40 - 50Frequency Response: 410-510HzSound Level: 105DbCaliber: Approx.70mm/2.8inImpedance: 3Be Applicable: 12V UniversalHow to Use:1. Check the battery2. The two yellow wires are connected to the woofer, the two green wires are connected to the tweeter, the red wire is connected to the positive pole of the 12V power cord, the black wire is connected to the negative pole or ground, and the blue wire is connected to the original car horn button control line.3. Fix the position with screws4. Ready for use .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 List2 x Horn1 x Control Module4 x nstallation AccessoriesNotePlease note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.