12V Mini Twin Comapct Electric HornThe Mini Twin Electric Horn has two totally sealed sound units with type 304 stainless steel covers, diaphragms and mounting bracket.Features:. Dimensions: 3" L x 8" W x 1.75" H. Maximum amp draw: 6 amps, 12 volts. dB(A) rating: 109 at one meter. Fundamental frequency: 490 +/- 20; 430+/-20Hz