B4R Question the way to pass wifi SSID and password in the first use

i need to control a product (a keyboard) that is based on esp32 using android app via wifi.
in the first place, off course, i need to connect the device to local wifi NET.
and for this i need a SSID and password.

what is the best way to pass the parameters in the first use? the user is getting a closed product keuboard, and that keyboard should connect to his wifi...

so what is the best way to pass the SSID and password in the first place?

thanks