Gadpiparty ZOSI 4K POE Security Camera System, 4PCS 4K Outdoor Indoor Spotlight PoE IP Cameras Wired, Color Night Vision, Motion Alert, 8 Ports 16CH 8MP Home Surveillance NVR with 2TB HDD for 24/7 Re

4K Ultra High Definition - This ultra HD 4K CMOS Image Sensor allows the camera to capture more light, which improves color, contrast, and low-light performance. 4K resolution is four times the resolution of 1080P, it can record everything with sharper details with the high Pixel count and be able to digitally zoom into far away objects without losing any quality. Up to 100ft color night vision, you can see clearly during day and night.
Smart Human Detection - Advanced AI human detection technology, the camera can intelligently detect human. When triggered by a human movement event, a smart light and sound alarm system sounds the alarm and responds to any potential hazards. At the same time the Instant notifications and email alerts will be pushed to your phone.
Two Way Audio & Remote Access - The PoE IP camera Built-in mic and speaker let you stay in touch with your household. So you can talk to your kids or tell your dog to stop barking, or say hello to the delivery man through the Free Zosi Smart App. Free app for live view & Playback on Mobile Phone with Wi-Fi anywhere anytime.
8 Ports NVR Upgrade 16CH Expandable - This 4K 8-port NVR can expand up to 8 PoE cameras. If you additional purchase a PoE switch (not included), you can update to 16 channel system. It provides you with the flexibility to expand additional cameras. You can add more (ZOSI only) 8MP, 5MP or 4MP POE bullet or dome cameras.
Continuous 24/7 Recording - Built in 2TB Security Grade Hard Drive,users are provided reliable 24/7 recording.Support ultra-long continuous recording and backup by USB. NVR can be set to automatically overwrite the oldest internally stored footage or you can transfer those video files by USB to a memory stick or external Hard Drive.