Yes, YI Dome Camera 1080p supports Two-way Talk. You can choose between Intercom Mode (half duplex) or Telephone Mode (full duplex) based on your needs.
Sporting two built-in high-agility and low-latency microphone and speakers, YI Dome Camera 1080p preserve the fidelity of the original voice and also filters out ambient noises in the environment.
Using "YI Home Camera" app, you can talk to your family like you are talking on the phone, only better!