Stainless Steel Single Trumpet Electric Boat Horn AFI brings the Stainless Steel Single Trumpet Electric Boat Horn, made for smaller vessels in mind. The exterior is constructed completely from stainless steel while the diaphragm is made of type 304 stainless steel to ensure your boat horn holds up to harsh marine environments. Product Features 12 Volt Max Amperage Draw 3.5 Amps dB Rating 108 at one meter Fundamental frequency 420 - 20 Hz Dimensions 14 L x 3.5 W x 4 H Stainless steel exterior T