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Motion detection · Front door security · Slim, low-profile designs
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 videodoorbells for every home or apartment, wired or battery powered.
Stop Crime In Its Tracks · Optional 24/7 Monitoring · Works with Alexa · Trusted by Millions
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