Hi @AU_Thach06. While the Ring Alarm is currently not compatible with the Ring Chime or Chime Pro, other neighbors have requested this compatibility before. You can find this request here on our Feature Request board where you can comment and vote on it. We use the Feature Request board as a way to gather and share ideas from the Community with our teams here, so that is the best place to add your suggestions. Thank you for taking the time to share your feedback and ideas here on the Ring Community. 