Loud And Powerful Horn;Upgraded interior structure can produce up to 150DB strong sound for any weather condition.When you drive, no one will ignore the sound.High Quality Material;The air horn is made of high quality material, which ensures durability and service life.The larger all copper wire coils create a powerful air compressor,Make the sound propagate further.Easy to install;Our Train Horn kit is very easy to install, you can install it manually with the harness package we distribute. The blue line and white line on the harness are respectively connected to the positive and negative poles of the original horn line, and the original steering wheel button controls the horn.Fit 12 Volt Vehicle:This train horn works on any 12V system vehicles,Including sedans, pickup, truck, SUV, RV,Jeep, Busses,and off-road motorcycles,also comes with a universal mount that makes the installation easier