They speak to me and to each other as you and I can do, using our minds. How to explain...*searches for words*

Each ring was forged of molten ore, as you might expect. I also added drops of my own blood to the mixture. So we are bonded by more than the skill of my hands. Not unlike you and me, Father. They carry a part of me and thus, we are able to communicate.

They can also speak aloud--when they wish to or are forced to.