This 4 Conductor 3.5mm Male plug to 3 Male RCA (Red / White / Yellow) plugs cable is commonly used for hooking up older analog devices. Generally the Red/White (Left / Right Audio) and the Yellow for Video plug into a 3.5mm 4 Conductor AV Socket. These are sometimes used for older analog camcorders or sometimes used in vehicles for the audio/video displays for passengers watching movies from portable DVD players.
This cable is 3 Feet in length, just a little over 1 Meter.