This high-quality snail air horn is designed for vehicles, including trucks, SUVs, RVs, ships, and motorcycles. It features copper wiring, waterproof sealing, and impact resistance for durability. The snail-shaped design produces a loud and penetrating sound with stable quality. It's compatible with a 12-volt power supply and can be installed in engine compartments or on vehicles with limited roof or side space. Ideal for various weather conditions, it's a versatile choice for adding a powerful horn to your vehicle.