The HELLA B133 Series Set of Super tone Horns offers an exceptional blend of high-performance and striking style for automotive enthusiasts who demand both functionality and aesthetics. Operating at robust frequencies of 375 and 500 Hz, these horns produce a penetrating and harmonious sound that ensures your presence is noticed on the road. Designed with a bold black matte finish, these horns not only sound impressive but also add a touch of style to any vehicle. - Ideal for drivers seeking to enhance their vehicle's safety features while making a strong visual statement, the HELLA B133 Super tone Horns are easy to install and compatible with a wide range of models, making them a top choice for upgrading your car's auditory and visual appeal. Riveted assembly instead of screws to increase reliability.