how to make sure that the earpods i have bought are original?

I have just bought an earpods online from a small company that typically buys apple accessories from amazon then they sell it online in my country ,they say that they sell original parts and i want to make sure that the earpods i've bought are original as they said that any client can ask on live chat to know that the product is original.

*there're also some numbers that i do not know what it refers to (MD827ZM/B) and (5T5325310)

So please help ;thank you.