Mini Twin Electric Horn - --F E A T U R E S- Type 304 stainless covers, diaphragms, and mounting bracket for a totally sealed sound unit. Dimensions: 3≴L x 8≴W x 1-3/4≴H Maximum amp draw: 6 Amps, 12 Volt. db(A) rating: 109 at one meter. Fundamental frequency: 490±20/440±20.