Audew 12V Air Horns Dual Trumpet Super Loud With Compressor Twin Tone AUDEW Air Horn blares out a loud and powerful warning. The two durable trumpets can produce sound as loud as 150DB. The great powerful sound catches everyone's attention. The air horn is metal material to ensure maximum strength and durability for long lasting usage; and is designed to be weather resistant ,tough enough to withstand the any weather and form of elements of blizzard. The air horn With a polished red compressor and shiny chrome horn they cast an eye-catching appearance on any vehicle mounted,And the air horn can produce 150DB sound,Improve the safety of family and driver travel.you need . 12V DC power available. The horns are commonly installed on cars, train, trucks, vans, tractors,buses etc. However it is also extremely suitable for motorcycles or boats. The air horn is easy to install. It is flexible and portable so it has the reflexes to take from one car to another easily. The horn kit includes basic mounting hardware, hose, and relay.