Dual Trumpet Air Horn with Compressor,12V 135db Air Horn Kit,for Any 12V Vehicles Trucks Lorrys Trains Boats Cars Motorcycle SUV Vans,Small Dual Trumpet Horn,Easy to Install, By LIYYOO Item Description About this item The Dual Trumpet Air Horn kit has two tones. High tone and low tone can make a powerful sound that is 150dB together. sound can not be ignored. Upgraded interior structure can produce deeper and higher tone, enough loud for lesser risk of injury and vehicle damage due to improved horn system, please use it reasonably especially in schools, hospitals The Dual Trumpet Air Horn can use it on any DC 12V vehicles. Including Cars, Trucks, Vans, RV, Motorcycles, Buses, and Boats. Please make sure your vehicle is DV 12V, it can not work on DC 24V vehicles. Air Horn is made of high-quality chrome plated zinc alloy material(Non-Rusting), All-copper coil, the metal trumpet and compressor are weather resistant, all kits are designed to serve for a long time,which can ensure air horn durability and longevity.It can work in a variety of temperature environments, no matter wherever you are. The Dual Trumpet Air Horn kit is very easy to install, you just need to splice a wire from the positive screw terminal to the power wires of the original horn wire or a horn switch installed on the dashboard, then splice a wire to the ground(Negative wire). Please check Fitment and Part Number before Ordering! Satisfactory service, if you have any questions, please feel free to contact us by email!We will solve it for you in the first time! ? See more product details Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.