https://www.amazon.com › Ring › Doorbells
赞助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.
Complete Peace of Mind · Free Shipping · Optional 24/7 Monitoring · Trusted by Millions
Models: Ring Video Doorbell, Ring Video Doorbell 2, Ring Alarm System