Phono Splitter/Joiner Adapter Twin RCA Sockets to Phono Plug Nickel

2 RCA female sockets to one RCA phono plugs designed to take a phono connection to one input for example 2 sets of speakers to a single input on a hi-fi

2 RCA Phono female to 1 RCA Phono Male Combine to phono s in one or split one phono into two. Usually used to connect two components into one input.