The SwannBuddy4K is a full-featured, easy-to-install wireless 4K video doorbell and chime unit that's now even smarter. It can operate 100% wire-free with the rechargeable battery or connect to your existing doorbell wiring. Experience exceptional 4K detail and a head-to-toe view with 165degree(s) vertical viewing angle. True Detect senses heat and movement for reliable alerts. See in the dark up to 16ft or 5m with powerful infrared night vision. Save clips locally and to the cloud. Use the free SwannShield Ai Voice Assistant for added protection to talk with visitors when you can't or are away from home. It s security you can trust.