my AirPods are not making a sound when I ping them to locate them? I can see them on my phone in find my device

Hello,

Hmm, it might be too far away or out of charge. See this:

If your AirPods are out of Bluetooth range, out of charge, or in the case with the cover closed, Find My won't give a current location. You just have to find them manually by looking for them. However, Find My may list the most recent location where they were last connected.

See this for more detail:

How to find your lost AirPods, AirPods Pro, or AirPods Max

Good luck.