AFI 20150 White Powder Coated Marine Boat Dual Trumpet Mini Deck Air Horn w/ Compressor Manufacturer: AFI; Brand: Full Blast; Manufacturer Number: 20150 Material: White Epoxy Coated Brass; Overall Dimensions: 9 1/2" L x 6" W x 3 3/4" D (Trumpets), 4 7/8" L x 2 7/8" W (Compressor) Electrical: 12V; Max Amp Draw: 20 amps; PSI: 9 - 11 Fundamental Frequency: 630  15Hz / 525  15Hz; dB(A)rating: 127 at one meter, 1/3 octave band Sold as seen in pictures; Note every computer shows colors differently; All measurements are approximate; Hardware and instruction/installation manual not included.