AFI Compact Dual Trumpet Electric Horns are engineered for a long life. 304 stainless steel is used throughout the major components including the diaphragms, motor covers, trumpets, mounting brackets and hardware. Its compact size makes this horn ideal for installations with limited space. This dual trumpet horn is engineered for use with 12V systems and produces 115db (at one meter). Know that you are installing a long lasting horn when your install an AFT CT Compact Dual Trumpet Electric Horn.