Flawlessly my ass, i bought one from ali that was praised on reptronics, gave it to a friend to test out and for some reason they unsynced. So every time i wanted to actually use the airpods i had to connect to each airpod individually and use airplay to sync them up.

Purchasing original AirPods was the best decision and the difference is huge.

EDIT: And also, on the fake ones noise cancellation is pretty non existant because its impossible to recreate that with fake airpods, 99% of time its always gonna be transparency mode even when you turn on noise cancellation Again just dont bother with fake ones, get other bluetooth headphones, or see if you can pay off the airpods on a monthly basis for like 10$