TRRS stands for Tip, Ring, Ring, Sleeve
It has four total conductors - three signal and a ground as opposed to a more common stereo jack's two
This connector is most often used in smartphones & cellphones to provide stereo audio and one mic channel

Technical Details

Size (LWH): 3.7 inches, 2.7 inches, 0.3 inches
Product Details
Product Dimensions: 3.7 x 2.7 x 0.3 inches
Shipping Weight: 0.02 pounds (View shipping rates and policies)
ASIN : B00OVTOSXG