High Tone Horn, High Pressure Air, Length (In.) 24-1/2, Width (In.) 8-1/4, Height (In.) 4-1/2, Material Brass, Finish Chrome, Exterior Mount or Under Hood Mounting, Decibels (dB) 130 @ 1 meter, Pressure (PSI) 90 to 110, Voltage -, For Use With -, For Use On Trucks With Existing Onboard Air System, Includes Hardware, Fittings and Bracket