can i use airpods from 2 different sets?

Hello titof665,

Thanks for posting in the Apple Support Communities! We understand you wish to know if you can use AirPods from two different sets on your iPhone X. We're happy to help! You may connect AirPods from another set as long as they are of the same generation. If you're wishing to do this you can follow steps here:

Set up your replacement AirPods or charging case

If you need further information let us know!

Thanks!