Deluxe All-Stainless Shorty Dual Trumpet Horn - 12V Features: 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: 16"L, 7-1/2"W, 4"H (40.5 x 19 x 10 cm); Max Amp Draw: 7 Amps; Rating: 120 db@ 1 Meter; - cis2:mm5mnJlm -Specifications: Voltage - Input Range (Volts): 12v; Color: Stainless; Box Dimensions: 4"H x 11"W x 18"L WT: 3 lbs; UPC: 768170100127; Quick Guide (pdf)