बेस्ट सेलिंग एएसटीएम प्रमाणित खिलौना लकड़ी के संगीत उपकरण खिलौने गैर-विषाक्त ट्रेन सीटी

A train whistle or air whistle (originally referred to as a steam trumpet) is an audible signaling device on a steam locomotive used to warn that the train is approaching, and to communicate with rail workers. Modern locomotives primarily use a powerful air horn instead of a whistle as an audible warning device. हालाँकि, whistle continues to be used by railroaders in the context of audible signaling, such as “whistling off” when a train gets underway.