Battery Wireless System Kit. IP Smart security cam system. Add on Security Camera. Wireless WIFI IP Camera. 15% off a spring refresh. Razor Sharp Details in 4K Ultra HD. 4K HDR video brings you closer to reality than ever with the finest details captured. Enjoy the best visual experience with 24/7 flawless streaming. Expand to 16-Channel System. Expand your camera system to a 16-camera kit by connecting a PoE switch. For improved property coverage. Secure Storage and Management. The pre-installed 2TB HDD, expandable up to 8TB, allows for 24/7 simultaneous video and audio recording of all connected cameras. Easy Playback with Filters. Easily filter videos by person, vehicle, face, abnormal sound category and quickly find key moments with highlighted lines on the timeline. Save More than 50% Storage. 264 coding, advanced H. 265+ saves about 50% bandwidth and storage for longer recording time and a better viewing experience. Reduce unnecessary false alarms and focus on what matters by customizing the activity zone. Reliable in All Environments. Thanks to its sturdy construction and weather-sealing, this camera is capable of providing reliable surveillance in a variety of environments. Question 1: Can I add more cameras to this system? You can add more (only ZOSI) 8MP, 5MP, or 2MP POE Bullet or Dome cameras. But the total number of cameras connected to the NVR should not exceed 8. Question 2: How to get the 4K 8.0MP/5.0MP resolution. (1) Please make sure that your TV monitor is 4K/5MP or better than 4K/5MP resolution, and connect the NVR to your TV monitor. (2) Setup the system, and go to Main Menu- Set up-Basic to change the “Video Output” to “3840 2160″(or 29521944) manually. Question 3: Why can’t I hear audio when watching live on NVR? The NVR can transmit audio only when the monitor/TV is connected via HDMI cable, otherwise the monitor/TV will have no sound output. The quality of the image is related to where you install this camera. Better to install cameras in a position with a wide field of vision, and the best outdoor installation height is 4-8 meters. The direction of the lens should avoid the angle facing the light source as much as possible. The installation environment should avoid a high dust environment as much as possible.