[Super Loud] The air compressor and larger coil can make stronger air pressure, which makes the dual horn produce louder and clearer sound.[Alloy Material] The car dual horn adopts high quality chrome-plated zinc-aluminum alloy material, hard and durable, wear-resistant and corrosion-resistant for long service life.[Dual Trumpets] The dual trumpets are designed for customers who are looking for loud and affordable air horns with 600dB sound level, stable performance and higher working efficiency.[Easy Installation] Our trumpet speaker kit is very easy to install. You just need to connect the wire on the straight screw terminal to the original speaker wire or the horn switch on the dashboard. It also comes with a universal bracket to make installation easier.[Wide Application] The dual trumpets are compatible with 12V system, can be used for SUV, motorcycle, yacht, boat, off-road vehicle, bus, train, etc.Specification:Product Name: Dual Trumpets Material: AlloyColor: SilverSize: 28*17*8cmPackage Include:1 x Dual Trumpets 1 x Fixing Screw Kit