High Quality Material – Our train horns are made of premium ABS material which is waterproof and can resist corrosion. It won??t get rusty or circut short. Providing longer service life. Dual Tone Design – 300DB loudness, giving you a loud and clear sound to warn others. Our 12v speakers gives you a loud voice to warn others, and provides a certain degree of safety for driving. Our snail horn can help you reduce unnecessary injuries. Wide Compatibility — Train horn suits for all kind of motorcycle, ATVs, go-karts, trucks and 12V power supplies; Don’t worry about the horn not adapting at all. And our horns are also compatible with SUVs, passenger cars, ships and motorcycles. Easy To Use – Our dual horn adopts dual tone design, no bulky air compressor, only a small device that can produce incredible sound. our snail horn is equipped with screws and brackets, making it easier for you to install it, and our customer install 2 horns for doubling the loudness. This is an auto parts horn that