
1.Suitable for 12V air horn, compatible with car/truck/vehicle trumpet/air horn. 2.Voltage: 12V voltage, diameter: about 50mm, height: about 110mm. 3.The red surface performance is stable, easy to install, matching your car horn! 4.The brand new product with high quality, waterproof and sealed, can be used in fresh or salt water environments, suitable for almost all weather conditions. 5.The price is reasonable and the product offers good value for money, sufficient for daily use.