12V Mini Compact Electric HornThe Mini Compact Electric Horn has a totally sealed sound unit with type 304 stainless steel cover, diaphragm and mounting bracket.Features:. Dimensions: 3" L x 3.25" W x 1.75" H. Maximum amp draw: 3 amps, 12 volt. dB(A) rating: 106 at one meter. Fundamental frequency: 430 +/- 20Hz