My left AirPod makes a ticking noise.

Hello otilia112,

After reviewing your post, it seems like the AirPods are making a sound. It looks like you have already done some troubleshooting to solve this issue. Even though there is a chance that you've tried these steps already, we would recommend you follow every step and let us know if the issue persists.

If your AirPods Pro make crackling or static sounds - Apple Support

Please don't hesitate to let us know if you need additional assistance.

Thank you for using Apple Support Communities. Have a nice day.

otilia112 Said:

"My left AirPod makes a ticking noise.: My left airpod has a noise like a ticking clock. I' ve moved I kept moving it in my ear, I reinstalled it but the noise still persists. What can I do to make this noise go away"

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Troubleshooting AirPods Audio:

Interference:

It may be interference that getting in the way here. 

Some Links in Regards to Interference:

• If your AirPods Pro Make Crackling or Static Sounds - Apple Support
• If the Sound from your Wireless Headphones Cuts Out or is Distorted - Apple Support