Many camcorders digital cameras mp4 players portable DVD players have an AV Jack out socket to connect to a TV or video.
This adapter plugs into the socket and gives you 3 RCA phono outputs to connect to your Yellow/Red/White connectors on your TV (see below for a scart convertor)
Some devices are setup to have the ground at the tip or at the base. Please check with your manufacturer first.
Yellow (composite video) & Red + White (Stereo Audio) This adapter is only suitable for devices where the ground is the 2nd connector from the base (3rd from tip).