Powerful, insanely loud, and all in a compact kit: the Shocker 238A XL train horn kit delivers the performance you need. The Shocker 238A 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.