The JNC660 is a 12 volt hand held jump start box. It is extremely durable and reliable. The box delivers 1700 peak amps of jump starting power, has 1700 peak amps, 425 cranking amps, 46″ long, 4 gauge heavy duty cables, a built in charger. The JNC660 is rugged, durable, & field proven. Call Bailey’s Towing Accessories today, 919-562-2984.