12V Compact Dual Trumpet Electric HornThe compact eesign of this trumpet horn makes it ideal for installation in smaller spaces.Features:. 100 percent stainless steel exterior. Type 304 stainless steel diaphragm. Dimensions: 16" L x 7.5" W x 4" H. Maximum amp draw: 7 amps. 12 volt. dB(A) rating: 110 at one meter. Fundamental frequency: 420 +/- 20, 370 +/- 20Hz