Comes complete with a 12-volt chrome power socket with a 3 feet 6 inches length wire, SAE Dual pin quick connectors, waterproof caps, and Eklipes 2000 Amp EZ Jump-start battery harness 505-668, which has a 2" length, a 15 Amp fused SAE plug and a female BMW jumper plug (capable of handling over 2000 cranking Amps!) This system is ready to go and completely compatible with most 12-volt battery chargers, cellphone, radar detectors, GPS, air pumps, heated clothing The harness also works on Eklipes universal Bike-2Bike Battery Jumping kit 505-669 Compatable with Eklipes Handlebar Mounts 691-754 and 713-357