How much does this cost to the nearest dollar?

HONSDUKE 3 Liter Train Horn Kit for Trucks/Car/Semi. Complete Onboard System of 150psi Air Compressor, 1 Gallon Tank, 4 Trumpets. Super Loud dB. Fits All DC12V Vehicles Like Pickup/Jeep/RV/SUV
A full train horn onboard system, ready to install. In this package, the intense quad trumpet air horn, Black color, made entirely of metal for maximum protection against all weather conditions. This system includes a 1 Gallon air tank, 150 PSI 12 volt air compressor, pressure gauge, pressure switch, hose, fittings, horn button and mounting hardware. Ideal for all vehicles with a 12V system. A bold, loud choice. Tank Capacity 1 Gallon (3 liter

Price is $170.00

Price: $169.99