The Airmite 3 Trumpet Air Horn is a practical and reliable product that delivers a powerful sound at 120 decibels. With its 3 durable red plastic trumpets and high range frequency of 580/775/800 Hz, this horn ensures maximum audibility. It is easy to install and fits most makes and models. The longest trumpet size of 8-1/2" provides excellent sound projection. The Airmite 3 comes with a heavy-duty compressor, relay, hose, and mounting hardware, making it a convenient and comprehensive package. Trust this 12-volt air horn to enhance safety and alertness on the road.