Adding Doorbell Chime to Wired Doorbell

I have a wired/battery 2k Doorbell and am trying to add a indoor chime (T8740). However, when I go into the Doorbell Settings and Indoor Chime, I have no option to add a doorbell chime. The only options available are:

  1. Existing Doorbell Chime
  2. Eufy Doorbell Chime (it’s looking for a USB Dongle)
  3. Homebase as Chime
  4. Alexa as Chime

What am I not doing right?

Thanks,

Robert

I don’t know I’m sure if you posted this on the eufy community you could get more help