The Wolo 418-LED is the next generation in air horns. Built like no other horn, the chrome back cover has 28 Red super bright high intensity long life LED's. The LED's can be used as a decorative marker light facing the rear of the vehicle or as a third brake light. A vehicle with the Powerhouse Plus is sure to be heard with its big rig truck sound as well as to be seen. The dual metal chrome plated trumpets will dress up and make any truck, RV, van, and etc. look great. Installation is made easy with Wolo's new flexible inlet hose with brass fittings. The Powerhouse Plus will provide the vehicle's owner, years of dependable maintenance free service. The kit includes a heavy-duty compressor, 30-amp relay, hose, weather protection covers and mounting hardware. Instructions in English / Spanish.