Crystal-Clear Clarity: The built-in 2K sensor and professional-grade lens allow you to view activity in picture-perfect resolution. See visitors in sharp detail as they approach your door. No Monthly Fee: Designed to protect your home as well as your wallet, eufy Security products are one-time purchases that combine security with convenience. All your data is stored locally meaning you will never have to pay for cloud storage. Dual Power Options: Half a year of coverage from one charge or non-stop power supply via a wired connection. Expanded Field of View: The increased 4:3 Aspect Ratio ensures you get a head-to-toe view of anyone who approaches and gives you the perfect viewing angle every time. Next-Level Detection: Have total control over what is detected through the use of the motion sensor, smart human detection, and activity zones. Receive real-time alerts when anyone approaches so that you never miss a delivery or keep guests waiting Military-Grade AES-256 data encryption ensures your footage is kept private on transmission and storage. Receive facial snapshot notifications so that you can quickly check who is at the door. Reduces false alerts via smart tech which differentiates humans from objects. Install in Minutes 120-Day Battery Life “Hey Google, show me my front door” Connect your Doorbell to the Google Assistant or Amazon Alexa and check in anytime on what's happening outside your home. : : :