Security at your front door made simple and visible. Protect your front door easily with the HP4 Door Viewer. You can control it remotely via the app or, even better, simply see who is at your door through the indoor monitor. Keep an eye on your front door anytime and anywhere. Watch live videos through both the app and the handy 4.3-inch color screen. The screen offers vibrant 1080p clarity, making it easy for even older individuals to know what’s happening outside. The HP4 Door Viewer is equipped with a 155-degree lens, providing a wide field of view. It is also smart enough to automatically switch between day and night modes. Wireless protection with a 5-month battery life. The HP4 Door Viewer features a rechargeable 4,600 mAh lithium battery. With the intelligent energy-saving function, standby time can last up to 150 days. Store videos locally on a 512 GB memory card that can be inserted into the indoor monitor. This ensures data security in case the outdoor camera is damaged. Alternatively, subscribe to CloudPlay for fully encrypted cloud storage. Image sensor: 1/3-inch CMOS. Lens: 2mm, viewing angle: 155° diagonal. Night vision function: ICR infrared filter with auto-switching. Video compression: H.265. Max resolution: 1080p x 2MP. Frame rate: Max: 15fps. Display: 4.3 inches. Wireless: Built-in 2.4 GHz Wi-Fi. Operating conditions: -10 °C to 45 °C. Power supply: DC 5±10% with a maximum power consumption of 2.2W. Base dimensions: 115.5 × 85.5 × 24.5 mm. Peephole doorbell dimensions: 71 × 71 × 48.3 mm. Weight: 302g.