Usage Tips:[150DB Loud Horn]The 24V single-tube truck horn can emit a 150DB loud and shocking sound for any weather condition, which is a good warning. your driving safety and remind others. Please do not use it near school or hospital, residential area. [High-Cost Performance]The train horn is made from chrome plated zinc material to durability and . It can work in a of temperature environments, no matter wherever you are. []Train horn for car and compressor cast an eye-catching appearance on any vehicle mounted. High quality trumpets is non-rusting overall,good corrosion resistance, the metal trumpet and compressor are weather resistant, all kits are designed to for a long time. [Easy Installation]The air horn is easy to install First, you fix the motor to a certain position on the car with a nut, then fix the horn tube horizontally outside or in the engine compartment, and finally connect the air pipe,relay and 24V power supply. The train horn is suitable for all 24V transportation equipment, such as cars, trucks, trains, , ships, motorcycles etc. Color: Black Material: zinc alloy Package Contents: 1x Train Horn Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.