What is 3 pole and ring in audio pin?
In top picture have in blue color is pole and yellow color is ring.
If we insert 3 pole audio pin 4 pole audio jack then they not proper work.Example always our all android hones and mostly new models laptop in 4 pole audio jack.Then we use audio splitter cable for this.You can better understand by looking at the below picture.
No influence on the sound quality.Made up high quality environmental protection material.High quality copper wires ensure best and pure quality.