According to Identify your AirPods - Apple Support you have:
AirPods Max (Lightning)
Model number: A2096
Year introduced: 2020
About firmware updates for AirPods - Apple Support
says it can run AirPods Max (Lightning): 6F25
Read that article for instructions.
Update your AirPods Max firmware
Make sure that your iPhone, iPad, or Mac is updated to the latest version of iOS, iPadOS, or macOS, and that Bluetooth is on.
Make sure that your AirPods Max are connected via Bluetooth to your iPhone, iPad, or Mac.
Connect your iPhone, iPad, or Mac to Wi-Fi.
Plug the charging cable into the bottom-right earphone, then plug the other end of the cable into a USB charger or port.
Keep your AirPods Max in Bluetooth range of your iPhone, iPad, or Mac, and wait at least 30 minutes for the firmware to update.
Reconnect your AirPods Max to your iPhone, iPad, or Mac.
Check the firmware version again.
If you still can’t update your firmware, reset your AirPods Max, then try to update your firmware again.
If you still cannot update, refer to this page for Apple Support features ➔ Contact - Official Apple Support
Select from the presented options until you find a solution for your issue, or see if there is a chat or phone call contact method offered lower on the page under “Get more help” (you sometimes have to narrow down the options multiple times before this is shown). If you do not see your issue, keep experimenting with any series of selections until you reach one that offers a chat session or a telephone call and get the representative to redirect you.
This support article has various country telephone numbers for contacting Apple for support and service ➔ Contact Apple Support - Apple Support For some countries look under “Other” listing at the end of the list. Not every country has telephone support, and phone numbers may only work when calling from the same country.