https://ring.com/Video/Doorbells
赞助Ring Smart Video Doorbells: Help Monitor Home Anywhere. Expand Your Security Today. Battery-Powered or Wired, Ring Has Smart Security Solutions for Every House or Apartment.
1080p HD video · Control from the Ring App · Works with Alexa
Types: Apartment, Condo, Home, Doorway, Front Door, Backyard, Townhouse…