Wolo (809 Challenger EC Chrome Finish Dual Trumpet Horn - 12 Volt, Dual Tone, Engine Compartment Mount Designed to mount in a 12-volt vehicles engine compartment All metal construction throughout so to withstand the extremes in all weather conditions and to provide years of dependable service The horns base is painted black enamel and both trumpets have a bright chrome finish, which will dress up any vehicle big or small Installation is made easy and is time saving because the horns air inlet is located between the trumpets The kit includes a heavy-duty compressor, 30-amp relay, hose, stainless steel mounting hardware, wire, electrical terminals, horn button switch and a rubber gasket for a watertight installation