Mini Compact Single Hidden Horn - 12V Features:304 Stainless Steel Trumpets, Diaphragm, and Mounting BracketsMeets ABYCA-23 for boats up to 12 metersPre-wiredFits existing hole patternsMuch louder than competitive modelsSpecifications:Dimensions: 3"L, 3-1/4"W, 1-3/4"H (7.5 x 8 x 4.5 cm)Max Amp Draw: 3 AmpsRating: 105 db@ 1 Meter