Mini Stainless Steel Dual Drop-In Horn with Stainless Steel Grills High Low PitchFeaturesAll Stainless Steel Inside Out304 Stainless Steel inside and out including a sealed sound unitNo rustGuaranteed for 5 years.All meet ABYC A-23 for boats up to 12 metersPre-wiredIt fits existing hole patternsSpecificationsLo Pitch Dimensions 3L, 3-14W, 1-34H 7.5 x 8 x 4.5 cmHi Pitch Dimensions 3L, 3-14W, 1-34H 7.5 x 8 x 4.5 cmMax Amp Draw 6 Amps.Grill Dimensions 4-78 x 2-38 with 4 hole centers.Rating 114 dB