Deluxe All-Stainless Dual Trumpet Horn - 12V Features: All Stainless Steel Inside & Out; 304 Stainless Steel inside and out including a sealed sound unit; No rust; Guaranteed for 5 years.; All meet ABYC A-23 for boats up to 12 meters; Pre-wired; It fits existing hole patterns; Specifications: Dimensions: 18-1/2"L, 8"W, 5"H (47 x 20.5 x 12.5 cm); Max Amp Draw: 8 Amps; Rating: 122 db@ 1 Meter; - cis2:mm5mnJlm -Specifications: Voltage - Input Range (Volts): 12v; Color: Stainless; Box Dimensions: 4"H x 11"W x 21"L WT: 3.6 lbs; UPC: 768170100288; Quick Guide (pdf)