Find the serial number of your AirPods.
Identify your AirPods - Apple Support
Identify your AirPods - Apple Support (CA)
Can I Just Replace One of My AirPods? - The Mac Observer
Use Check In on iPhone to let your friends know you've arrived - Apple Support
Identify your AirPods - Apple Support (CA)
If you forgot your Apple ID - Apple Support (CA)
Find the software version on your iPhone, iPad, or iPod - Apple Support
Get system information about your Mac - Apple Support
Use Siri with AirPods Max - Apple Support