Wider Angle, Larger Area Capture more area with 130 wide angle, see what's happening around your house in 1080p high resolution. Clear Images in Dark and Backlit Settings With WDR technology and F 2.1 large aperture, the camera can record clear detailed images even in darkness and backlight. Night vision distance up to 7m, display the outdoor environment clearly at night. Four Cameras Recording at the Same Time, with No Blind Spots Multiple cameras can be operating at the same time and recording every corner around the house from any angle. You can check images of four cameras on your smartphone at the same time, and can also tap one image to check the details, keeping an eye on your house from anywhere. Stable and Reliable Even in Different Temperatures With a wide operating temperature range, the camera can work normally at temperatures ranging from -20 C to 50 C, guarding your house all year round. Real-Time Alert Sent to your Phone The camera features an anti-theft screw structure and a built-in gyroscope. If abnormal activity is detected, a real-time alert will be sent to your phone. Real-Time Alert in Case of Abnormal Activity Starts recording and sends notifications if an unexpected temperature change and unusual activity within 7m are detected. Smart human detection, real-time alert. Independent Indoor Receiver The indoor receiver can store videos via local TF card, USB drive and/or 3-day rolling cloud storage, to meet your video storage need and prevent information loss and leakage. Adopts the new-generation H.265 video encoding technology, save more storage space, view seamless images in fast and stable connection with the new-generation H.265 video encoding technology without having to upgrade your network.