1178dB loud and clear sound, which is easy to attract the attention of pedestrians. 2Can be used on any DC12V vehicles, suitable for car, trucks, RV, motorcycles and boats, etc. 3Made of high quality ABS and iron material, rugged, rust?proof and durable. 4The installation is simple and does not require complicated operations, convenient to use. 5Exquisite workmanship, glossy and stylish, which can be a wonderful decor for your vehicle. 1 x Y Type Distributor 2 x Air Horn 1 x Hose 1 x Air Compressor 1 x Relay 5 x Screw 5 x Nut 2 x Gasket 1 x Instruction Condition: 100% Brand New_x000D_Item Type: Air Horn_x000D_Material: ABS + Iron_x000D_Color: Blue_x000D_Sound Level: 178dB_x000D_Voltage: 12V_x000D_Application: Suitable for Car, Trucks, Van, RV, Motorcycles, Buses, and Boats 1178dB loud and clear sound, which is easy to attract the attention of pedestrians. 2Can be used on any DC12V vehicles, suitable for car, trucks, RV, motorcycles and boats, etc. 3Made of high quality ABS and iron material, rugged, rust?proof and durable. 4The installation is simple and does not require complicated operations, convenient to use. 5Exquisite workmanship, glossy and stylish, which can be a wonderful decor for your vehicle. 1 x Y Type Distributor 2 x Air Horn 1 x Hose 1 x Air Compressor 1 x Relay 5 x Screw 5 x Nut 2 x Gasket 1 x Instruction