The blazing type 12 V pump Yankee Horn is an air compressor built in for high volume. Powerful sound with presence, effective for alerting and warning. Universal fit for large trucks and other vehicles and easy to install and use. (Blazing Type) This 12V pump Yankee horn is recommended for those who cant have enough treble with genuine horns. Built-in air compressor so there is no need to worry about air running out. (Outstanding Durability) This high strength stainless steel Yankee Horn is resistant to rust and corrosion, and has excellent durability, so you can use it for a long time. (An ever-loved Yankee Horn) The Yankee Horn is a very large and sometimes very flashy air horn that can be attached to trucks and large vehicles. It features a loud volume and powerful tone that is used for a variety of purposes, including warning and communication between truck drivers. (Set Contents) Yankee Horn body (built-in air compressor), Installation state; Installation method: When connecting to the pump, the red line with the terminal is connected to the positive pole, and the blue line with the terminal to the negative pole. Meanwhile, the wire from the relay will connect the red line to the positive pole, and the black wire to the negative pole. Processing may be required for installation *Instruction manual not included (Size) Height 8.5 inches (21.5 cm), Width 6.1 inches (15.5 cm); Voltage: 12 V; Volume: Approx. 115 dB - 125 dB; Material: High strength stainless steel; Note: We take care that the color of the actual product may differ from the color of the product depending on your monitor settings. We appreciate your understanding. We are not responsible for any damages, damages, accidents, etc. caused by using this product. Installation is at your own risk. We cannot accept exchanges, returns or refunds once installed.