广告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.
Models: Battery Doorbells, Video Doorbell 2nd Gen, Video Doorbell 3, Video Doorbell 4
Ring's New Doorbell Has 1080p Video & A Swappable Battery – TechCrunch
广告Combine Alexa with Ring for hands-free home monitoring. Always know when someone is there. Ring has video doorbells for every home or apartment, wired or battery powered.
Models: Ring Video Doorbell, Ring Video Doorbell 2, Ring Alarm System
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