Features: Our 300DB Train Horn offers the loudest sound on the market, while also being the most compact Train Horn offered. The Train Horn is a high-quality, high-end train horn kit designed to integrate into as many trucks as possible. On top of that, the installation process takes less than an hour! Horn Electric Snail Horn Best Price in US ... Our Horn features an extremely powerful directly injected mini-compressor paired with a patented snail design to really charge and amp up the sound! All integrated into one small but powerful device! There is no bulky air compressor, only a small device that produces incredible sound! Its so compact, almost HALF of our customers buy and install 2 horns for double the loudness! Train Horn is Suitable For Almost Any Vehicle! While Its the perfect upgrade for trucks, our horn is also compatible with SUVs, passenger cars, boats and motorcycles. Like we mentioned earlier, The installation process takes less than an hour and is easy to do. Instructions and everything you need is included! Heres why the 300DB Train Horn is the BEST! Discrete, Compact Black Design 300DB Sound Volume, The Most Powerful on The Market! Loud, Clear and Deep Train-Like Sound Simple Installation Made from Quality metals and an ABS construction that wont oxidize Complete Water and Weather Resistance Specifications: Material: ABS Loudness coefficient: 300DB Technical support: Vehicle power: 12V input currenton: 10A E mark rating: LOW 410HZ HIGH 510HZ Single speaker size: diameter: approx.9 cm ; depth: approx.9 cm