①. Our 1105DB train horn delivers a very loud sound while being one of the most compact train horns available. The Train Horn is a train horn kit designed for a fit into as many trucks as possible.<br> ②. Train Horn is suitable for almost all vehicles<br> ③. While it's a suitable upgrade for trucks, our horn is also compatible with SUVs, passenger cars, boats, and motorcycles.<br> ④. Made from quality metals and non-oxidizing ABS construction. Simple installation. Discreet and compact black design. Complete water and weather resistance. Loud, clear and deep sound similar to that of a train.<br> ⑤. Our horn features an extremely powerful direct-injected mini-compressor combined with a patented snail-shaped design to really charge and amplify the sound<br> ⑥. All integrated into one small but powerful device<br> ⑦. There is no bulky air compressor, just a small device that produces amazing sound<br> ⑧. It is so compact that many customers purchase and install 2 horns to overtake volume