Deluxe Stainless Steel Dual Trumpet12 VoltDimensions: 18-1/2"L, 8"W, 5"H (47 x 20.5 x 12.5 cm)Max Amp Draw: 8 AmpsRating: 122 db@ 1 MeterStainless Steel HornsAll Stainless Steel Inside & Out304 Stainless Steel inside & out including sealed sound unit No rust Guaranteed for 5 years.All meet ABYC A-23 for boats up to 12 metersPre-wired Fits existing hole patterns