Phone Jack 3.5mm Stereo Metal
This item is the jack for a stereo audio connection. Shown below is the channel configuration as seen on the plug that would plug into this jack.
Phone Jack One Quarter Inch Stereo Metal
Phone Jack 3.5mm with three contacts plus sleeve for Video + Stereo Audio Chassis Mount
Phone Plug One Quarter Inch Stereo Metal
Phone Jack 3.5mm Mono