3.5mm Stereo To RCA Red White Audio Balun Extender Over Cat5e CAT6 CAT7 Set of 2 Audio Baluns - 1 Receiver and 1 Transmitter Maximum distance of 250 Ft cable length Bi-directional so each end can either transmit or receive Installation - It is simple. Just plug in the cable to each adapter. Plug them into your devices and then - That's it your done. Audio Connectors: 3.5mm Stereo mini x 1 + RCA x 2