New iPhone SE Does Not Have a Headphone Jack, Nor Ships a 3.5mm Adapter
https://wccftech.com/new-iphone-se-does-not-have-a-headphone-jack-nor-ships-a-3-5mm-adapter/
If you are planning to buy the iPhone SE 2020 then you should know that there is no headphone jack and no 3.5mm adapter in the package.
It is absolutely not surprise at this point that Apple has ditched the headphone jack. If you are upgrading from the other older iPhone SE to the new one, then you should know that you have to make the ultimate sacrifice as well.