Stainless Steel Mini Compact Single. 12 Volt. Dimensions: 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 Meter. Stainless Steel Horns. All Stainless Steel Inside & Out. 304 Stainless Steel inside & out including sealed sound unit. No rust. Guaranteed for 5 years.. All meet ABYC A-23 for boats up to 12 meters. Pre-wired. Fits existing hole patterns