12V Loud Motorcycle Horn Loud Air Motorcycle Horn 130dB 510hz Electric Snail Horn for Motorcycle Car for Motorbike Truck Vehicle. Features high loudness warning, waterproof and environmentally friendly ABS material, high-quality terminal block, simple installation, and wide range of application. Specifications include origin from Mainland China, type as snail, waterproof and super loud features, black color, 12V DC operating voltage, 130dB sound output, and 510hz frequency.