3.5mm Audio Socket Stereo Sound Module w / Mic

Descriptions:
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 ).

Main Features:
Color: red 
Material: FR4