The crackling issue is a design flaw caused by dust or other contamination on the noise cancelling microphone meshes. Therefore, people with less earwax who use their AirPods in very sterile environments only are less prone to experience the issue.
Had mine replaced 3 times. Even the third pair developed the issue a year ago. Apple refused to replace them again so I used them without NC until the left earbuds membrane failed completely just recently.
Had mine replaced 3 times. Even the third pair developed the issue a year ago. Apple refused to replace them again so I used them without NC until the left earbuds membrane failed completely just recently.