This kit features Kleinn's dual black truck horn, two black finish trumpets 16.75" and 14.5" in length. Think fire truck or ambulance air horn but LOUDER! Kleinn's compact air horns can fit in almost any vehicle and deliver the big sound you need. Easy to fit, glistening chrome finish and extreme truck horn sound; this air horn is the complete package. This Air Horn Kit from Kleinn Automotive includes everything you need for a complete air horn install on your vehicle. Kits include horns, compressor, tank, wiring, air tubing and switches. There is no mistaking the that genuine train horn sound. Kleinn Automotive manufactures the loudest and highest-quality horns on the market.