How much does this cost to the nearest dollar?

Viking Horns Super Loud 170 Decibels Three Trumpet Train Air Horn Kit, with Dual 200 PSI Air Compressors (Chrome)
Brand New Viking Horns Loud 3 Trumpet Train Air Horn kit. This Horn system produces a High-Powered Sound of 170 Decibels. Trumpets are chrome plated metal. Will replace your original horn or can be installed as an auxiliary horn. Comes with a air tank, two (2) 200 PSI heavy duty maintenance free 100% duty cycle air compressors, 1/2 Diameter Air Hose (for increased air flow that produces a louder sound), 1/2 Heavy Duty Electric Air Valve Solenoid. Includes Mounting Hardware, connecting brass fittings, Air gauge, PSI Air Pressure Switch, Teflon

Price is $558.00
Price: $557.68