Use this RCA female-to-RCA female adapter to connect RCA cables together. How many times have you run a foot short on the RCA cable coming from your CD or tape player? Now you simply plug this onto the end of your cable and you can extend that cable with another. Everyone has three or four extra dual RCA cables in a box somewhere right? Hosa's injection-molded cable terminations for which they have become famous. Recording studios stage racks keyboards effects devices - all can be connected with molded assemblies like their CPP- CPR- and CRA-series cables and snakes which perform just as well as much more expensive cables with metal-headshell assemblies.