The Challenger-LV Lanyard Operated is a high-pressure roof mounted horn that offers powerful sound and durability. With all metal chrome plated trumpets and a tank size of 2 1/2 liters, this horn delivers a strong and clear sound. The tank pressure of 90-100 psi ensures consistent performance. Measuring 17" x 7" x 5", this horn is sold individually and comes with all the necessary components including wire, horn switch, high-pressure hose, flexible inlet hose, lanyard valve, stainless steel mounting hardware, and a rubber gasket. It is designed to fit most makes and models, making it a practical choice for any vehicle.