Dual Trumpet Chrome Brass Mini Air Boat Horn Kit with CompressorAFI Dual Trumpet Chrome Brass Mini Air Boat Horn Kit looks good on any boat. Meets ABYC/NMMA regulations on boats 66 feet or less. AFI Air Horns can produce sounds level ranges between 120 and 127 dB. The 12/24 Volt compressors are both CE listed. Solid brass construction allows your horn to hold up to Marine environments. Product Features: Chrome Plated; Solid Brass Construction; 12 Volt compressor; Includes: Compressor, air tubing, fittings, and hardware; Non-corrosive Lexan Polycarbonate Diaphragm; Maximum amp draw: 12 Volt: 20 Amps; 24 Volt : 10 Amps; 9-11 PSI; Dimensions: 9.5" L x 5" W x 3.75" H; Fundamental Frequency: 630 +/- 15 Hz, 525 +/-; Click here to download AFI Dual Trumpet Chrome Brass Mini Air Boat Horn Kit Manual