Feature 1 Superior Sound Quality: Crafted with ABS and metal materials, the horn kit produces loud, clear sound. It ensures that your vehicle has an effective audible warning, whether driving on a noisy forest track or a city street. 2 Enhanced Vehicle Safety: With its loud and clear sound, the horn kit greatly increases your vehicle's safety. The potent sound ensures that other drivers are well aware of your presence. 3 Reliable Circuit Design: The kit features a professional wiring harness relay, ensuring a stable circuit output. This avoids any horn response delay or distortion, continually offering you reliable warning protection. 4 Universal for 24V Vehicles: Electric horn is universal for 24V vehicles, can be widely used, suitable for truck, bus, train, evaporator, and ship, etc. 12V vehicles are not applicable. 5 Comprehensive Kit: The electric horn kit provides a complete set that includes both a horn switch and a wiring harness relay to make installation and adjustments as easy as possible.Item Type: Horn KitMaterial: ABS + MetalHorn Type: 60B, 60dB 24VSwitch Wire Length: Approx. 3 Meters / 9.8ftApplicable Vehicle Model: Universal for 24V VehiclesFor Example: Truck, Bus, Train, Evaporator, And Ship, etc.Note: (12V Vehicles Are Not Applicable) Package List2 x Horns1 x Switch1 x Wiring Harness1 x Relay4 x AccessoriesNote12V Vehicles Are Not Applicable