SparkFun TRRS 3.5mm Jack Breakout

TRRS connectors are the audio-style connectors that you see on some phones MP3 players and development boards. TRRS stands for "Tip Ring Ring Sleeve " which reflects the fact that unlike a standard stereo connector this actually has three conductors and a ground. Some devices use the extra conductor for a microphone (like hands-free headsets) or to carry a video signal (like in some MP3/MP4 players). This breakout board makes it easy to add a TRRS jack to your prototype or project by breaking out each conductor to a standard 0.1" spaced header.