I bought my Apple AirPods Pro from target . But how can I tell if they are real if they have 3 different serial numbers as they claim ? Help ?

It’s target , the box is sealed . I bought it recently in 2021 but the box was been sitting there since 2019 ? That’s what it says on the box . It had a pull tab which I thought new AirPods Pro don’t come with it . Now I’m hearing that each ( left , right , the box has serial numbers that are different . I’m super blind and can’t see nothing on these things except the beginnings are the same with H? Then the last should be L but idk . Guess take it to Apple store or back to target and say this is old as crap . I didn’t pay for a 2019 model . Grrrrr