2PCS 300DB Train Horn for Trucks – The Loudest Waterproof Air Electric Horn – 24V Dual Tone Horn for Car, Motorcycle, and SUV This 300DB (2 x 150DB) train horn delivers the loudest sound available on the market, designed with a compact and powerful structure. Featuring a dual-tone design and internal reflux technology, it produces a deep, clear, and powerful sound up to 300DB, providing enhanced auditory warning for improved driving safety. The 24V electric horn helps alert others and reduce potential hazards on the road. Innovative Design: Equipped with a high-performance mini-compressor for strong, amplified sound output. All components are integrated into a compact, durable unit for maximum efficiency. Broad Compatibility: Ideal for trucks, SUVs, passenger cars, motorcycles, and boats. A versatile upgrade for various vehicle types. Waterproof Construction: Made from ABS polymer material with excellent corrosion resistance and full waterproof protection. Ensures reliable performance in wet or harsh weather conditions without rust or electrical failure. Product Features: - Compact and durable design - 300DB sound output – one of the most powerful available - Deep, clear, train-like tone - Simple installation process - Fully resistant to water and weather Specifications: - Voltage: 24V - Frequency: Low 410Hz, High 510Hz - Sound Level: 300dB Package Includes: - 2 x 300DB Train Horns - 2 x Iron Mounting Brackets - 2 x Screw Caps Note: - Color may vary slightly due to monitor display settings. - Please allow a slight measurement variation of 1–3mm due to manual measurement.