Stainless Steel Mini Compact Single12 VoltDimensions: 3"L, 3-1/4"W, 1-3/4"H (7.5 x 8 x 4.5 cm)Max Amp Draw: 3 Amps Rating: 105 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