?? Provides a weatherproof quick disconnect plug for connecting any 4-channel amp to subwoofers or two pairs of speakers plus one accessory item ?? Easy to use, just simply plug the connector together and cut the wires to create one connection for the amp and one for the speakers ?? Four 16-gauge speaker wires and Two 18-gauge accessory wires ?? Oxygen free copper wire for maximum durability and conductivity ?? Backed by Scosche's Lifetime Tech Support and Limited Lifetime Warranty