12V Horn Air Twin Snail Set Siren Loud Dual Two Tone Fittings Truck Van Boat

Specification: Product Name : Twin Snail Horn Siren Material: Steel Alloy + Engineering Plastic Color: Carbon Fiber Style Size: 70 x 60mm Impedance: 8 () Frequency: 410HZ low frequency / 510HZ high frequency Quantity: 2pcs Fitment: For Truck Van Boat ,etc. Features: The high-pitched sound line has a large diffusion range and a long propagation distance, which effectively warns. Highly waterproof, even if it is rainy, it will not hinder the spread of sound. The design of the high and low sounds, the snail-like sound chamber design, effectively improve the sound quality and enhance the volume. Note: 1.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) 3.There are no instructions included in this kit.If you want to know how to use or install it,please contact us by Email.We will provide help as much as possible. Package Included: 1 x Horn 2 x Mounting Pieces 2 x Nuts