Head-to-Toe Video: With a 170° ultra wide angle and 9:16 vertical view, the AOSU doorbell camera provides a complete view of your doorstep, from head to toe. Never miss a visitor or package again.Protect Your Packages Without Subscription: The doorbell camera automatically detects packages at your door and sends you an instant alert. Rest assured that your deliveries are safe and secure.Too Many Invalid Alerts? - Advanced human detection technology minimizes false alerts by focusing on detecting people, not animals or shadows. Receive timely notifications with clear pictures of actual visitors.2K Full HD Clarity: Experience stunning 2K Full HD video that captures every detail. See who's at your door and what they're doing with exceptional clarity.Convenient Communication: Communicate with visitors from anywhere using the AOSU doorbell camera's two-way voice function. Stay connected and in control of your home security.