Hi there!
These are Battle.net Accounts with Overwatch 2 Access enabled. All you have to do is login and you're able to install the game and play!
The account will be delivered in mail : password format, you're able to login into the mail address with the exact same details and you're of course able to change the details as you wish.
For any questions or support, do not hestitate to add and message me on Discord: Astral#8406. Or simply message me on elitepvpers!