Loudness: 150db±5db 

Package Includes: 

                 1 X Air Horn 

                 1 X Relay

                 1 X Harness package 

                 1 X Filter 

                 1 X Screw,nut,cushion block

 Several common wiring errors:

1. After connecting the line, press the horn button,if the horn will not sound, and the relay will not clatter, which means that the blue line and the white line are wrongly connected. They should be connected to the power supply of the original car respectively. They can connect the horn line of the original car or the battery.

2. The air pump makes a whine sound but the horn doesn't sound, which means that the positive and negative terminals under the air pump are connected reversely. The yellow wire should be inserted into the positive pole and the black wire into the negative pole.

3. The sound of the horn is not stable, and sometimes it will break. That's because there is paint on the frame where the black wire is grounded, which affects the normal power on of the negative pole. As long as it is connected to a good power on position, it is OK.

High Volume: The train horn can produce 150 DB of strong sound. When you drive, no one will ignore the sound. Greatly enhance driving safety.
High Qality: The air horn is made of high quality material, which ensures durability and service life and can work in various temperature environments.
With Air Pump: New Upgraded Compressor, red copper coil, vacuum chrome plating, fast response, there is no need to have air source on the car.
Easy To Install: Our air horn kit is easy to install, you can install it manually with the harness package we distribute, wiring instructions with color diagrams are attached.
General Accessories: Suitable for any 12V vehicles trucks boats cars vans lorries SUV RV motorcycles off road etc.