ROOF MOUNT OR INTERNAL CHROME DUAL TRUMPET & DUAL COMPRESSOR
 120 Decibels 390/435Hz
This is a roof mount air horn that has dual metal chrome trumpets plus dual heavy duty compressors. It produces a simultaneous diesel sound that is EXTRA LOUD, for the vehicle owner that demands to be heard. This Italian made horn is a perfect addition for any truck, 4X4, RV, van, etc. So if you want the sound of the big trucks without an on board air tank, then This is the one for your vehicle. It will look as good as it sounds on your roof. Comes complete with dual trumpets, dual compressors. and all mounting hardware, - Longest Trumpet 15" - Smallest trumpet 13”