Feature: 1. Wide Application: Air horn is designed for external use and is very suitable for marine applications, but it can also be used in other vehicles with 12V systems, such as RVs, SUVs and trucks. 2. 328DB Super Loud: Single trumpet can produce sound as loud as 328DB. The great powerful sound catches everyone's attention, dependable and practical. 3. Premium Material: Single trumpet is made of nonmagnetic stainless steel, the surface is brightly polished and will not rust, suitable for all weather. 4. Portable: Air horn is flexible and portable so it has the reflexes to take from one car to another easily. 5. Easy Installation: The installation is simple with provided bracket, the two wires can be easily connected, quick to install. Specification: Item Type: Loud Single Trumpet Material: Stainless Steel OEM: VXH1112MAR-C Power: 30W Voltage: 12V Decibel: 328DB Characteristic: Single trumpet Polished Maximum rust protection Application: Boats, yachts, RVs and trucks. Package List: 1 x Loud Single Trumpet1 x Rubber Pad5 x Screw5 x Nut10 x Gasket