AFI Compact Single Trumpet Electric Horns are engineered for a long life. 304 stainless steel is used throughout the major components including the diaphragm, motor cover, trumpet, mounting bracket and hardware. Its compact size makes this horn ideal for installations with limited space. This single trumpet horn is engineered for use with 12V systems and produces 110db (at one meter). Know that you are installing a long lasting horn when your install an AFT CT Compact Single Trumpet Electric Horn.