Viking HornsV107C-3/4008B, Loud 149 Decibels Black Four Trumpet Train Air Horn System Kit with 150 PSI Compressor, and 1.5 Gallon Air Tank

Great sound! Air compressor burnt out almost a month or so down the road, contacted company and no response. So cost me additional $60 to buy another one. Overall decent package but be prepared.

Compressor isn't make any pressure pass 40 psi