Public-to-public 4-section Universal Car Audio Cable

Product information:
Applicable object: Audio and Video
Wire specification: 4 core wire; OD:3. 0MM PVC outer quilt pure copper strip aluminum foil
Line length: 1m
Color: black, white
Differences between four sections and three sections: four sections are connected to the left and right channels, connected to MIC, and grounded; Three sections are connected to the left and right channels, grounded, not connected to MIC