Watch Them Come in Full HD: Get a clear view of anyone approaching your front door in 1080p. You will always get a color-accurate, head-to-toe image thanks to the advanced WDR and 4:3 aspect ratio. Front Door Security for 120 Days: A single charge provides 120 days of faultless front door coverage thanks to the closed, low-power wireless connection formed by the doorbell and Wi-Fi chime. No Subscription Is Needed: Eufy security products are one-time purchases that combine convenience and security, and they are made to protect both your home and your pocketbook. Slim, Sleek, and Simple to Set Up: Without the trouble of intricate wiring, installation can be finished in a matter of minutes. Its slender form guarantees a smooth fit on any doorframe. Your Information is Safely Stored: