Search query: ring doorbell without existing doorbell wiring

Product: Ring Video Doorbell – newest generation, 2020 release – 1080p HD video, improved motion detection, easy installation – Satin Nickel 1080p HD video doorbell with enhanced features that let you see, hear, and speak to anyone from your phone, tablet, or PC.
An update from the original Ring Video Doorbell, enjoy improved motion detection, privacy zones and audio privacy, and crisper night vision.
Receive mobile notifications when anyone presses your doorbell or triggers your built-in motion sensors.
Powered by the built-in rechargeable battery or connects to existing doorbell wires for constant power.
Easily setup by connecting your Ring Video Doorbell to wifi through the Ring app and mounting with the included tools. Ring Satin Nickel

Product: Ring Video Doorbell Pro – Upgraded, with added security features and a sleek design (existing doorbell wiring required) Upgraded, 1080p HD wired video doorbell with Two-Way Talk and Quick Replies, Advanced Motion Detection, built-in Alexa Greetings (an exclusive Ring Protect Plan subscription feature), enhanced dual-band wifi, and customizable privacy settings
Get motion-activated alerts on your phone, tablet or PC and check in at home anytime with Live View all in the Ring app
Speak to visitors when you can’t get to the door with built-in Alexa Greetings, an exclusive Ring Protect Plan subscription feature
Enjoy a more reliable connection with dual-band (2.4 or 5.0 GHz) wifi connectivity
Hardwire Video Doorbell Pro to your existing doorbell wiring and doorbell chime inside using the included tool kit for around-the-clock power and peace of mind Ring Satin Nickel

Product: Ring Video Doorbell 4 – improved 4-second color video previews plus easy installation, and enhanced wifi – 2021 release 1080p HD video doorbell with improved video previews and battery life.
All-new Color Pre-Roll Video Previews of all motion events means you’ll never miss a moment at your front door, day or night.
Enjoy customizable privacy zones and audio privacy, enhanced dual-band (2.4 or 5.0 GHz) wifi connectivity, and improved motion detection.
Receive mobile notifications when anyone presses your doorbell or triggers your built-in motion sensors.
Powered by a removable, rechargeable battery pack or connects to existing doorbell wires for constant power. Works on any home. Ring Satin Nickel