How much does this cost to the nearest dollar?

AmazonCommercial LED Emergency Exit Sign, UL Certified, Double Face Exit with Battery Backup
An Amazon Brand 4-pack of LED double-face exit signs in fire retardant, injection-molded, thermoplastic ABS housing Wall, ceiling, and end mountable; Input Voltage 60HZ Long-lasting Epstar SMD LED light with test switch and charge indicator light Nickel cadmium battery provides 90 minute backup power in the event of a power outage; 1.2V UL-certified with a flame rating plus overcharge and over-discharge protection Operates in damp, but not wet, and dry conditions; operating temperature 0-40 degrees Celsius Brand AmazonCommercial, Size Material Acrylonitrile Butadiene Styrene, Mounting Type Ceiling Mount,Wall Mount, Weight 

Price is $71.00

Price: $70.99