A:AnswerI will answer my own question. It does work the existing chime that was installed when the home was built. I had to go into settings and specify for it to ring the old chime.
A:AnswerYes, the eufy Security Smart Wi-Fi Doorbell C31 is compatible with the Eufy HomeBase 2. The HomeBase acts as a hub that allows the doorbell to detect motion, store videos, and send notifications when someone rings the doorbell. Additionally, the HomeBase 2 needs to initially connect to your router via Ethernet but can later connect via Wi-Fi for flexibility.