These horns will retain their gleaming good looks for years thanks to their stainless steel construction. Unlike some other look-alike horns, even the trumpet bells are all stainless steel—not plastic. The pleasing tone commands attention without being obnoxious. Pre-wired for easy hook-up to your boats 12-volt system. ABYC-compliant for boats up to 20 meters.Material: Stainless steelLoudness dB: 118dB Power Requirements: 12V Draw: 4A @ 12V DCDimensions: 4"W x 16 1/2"LWarranty: One year