E82101W4 2.5x the Clarity: The built-in Sony 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. 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. 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.