Powerful, insanely loud, and all in a compact kit: the Conductor's Special 540 train horn kit delivers the performance you need. The Conductor's Special 540 features the insanely loud, American-made, Shocker Horns. These horns are ridiculously loud and, more importantly, actually sound like a train! The horns are hand-tuned in the USA to the government mandated train signal chord. Simply put, they sound completely authentic.