If there's no sound in one airpod make sure that your charging case is fully charged Why is only one airpod working Place both airpods in your charging case and let them charge for 30 seconds.
Only One AirPod Working / How to Solve Airpods Problem / Aminul Tech
Here are 11 easy ways to fix charging, sound, or connection issues—works for airpods pro and all models.
Troubleshoot a left or right airpod that just won't pairit's frustrating when one of your airpods won't connect to your apple device
Luckily, there's usually a simple fix for this issue In this article, we'll go over the most common.