Deluxe All-Stainless Single Trumpet Horn - 12VFeatures:304 Stainless Steel inside & out including a sealed sound unitNo rustGuaranteed for 5 yearsAll meet ABYC A-23 for boats up to 12 metersPre-wiredFits existing hole patternsSpecifications:Dimensions: 16-1/2"L, 4"W, 4-3/4"H (42 x 10 x 11.5 cm)Max Amp Draw: 4 AmpsRating: 118 db@ 1 Meter