12V Compact Single Trumpet Electric HornThe compact design of this trumpet horn makes it ideal for installation in smaller spaces.Features:. 100 percent stainless steel exterior. Type 304 stainless steel diaphragm. Dimensions: 14" L x 3.5" W x 4" H. Maximum amp draw: 3.5 amps. 12 volt. dB(A) rating: 108 at one meter. Fundamental frequency: 420 +/- 20Hz