【4K 8.0MP Ultra High Definition and Color Night Vision】Four times the resolution of 1080P.This Ultra HD 4K CMOS Image Sensor allows the camera to capture more light,which improves color,contrast,and low-light performance.In 4K resolution.Record everything with sharper details with the high Pixel count and be able to digitally zoom into far away objects without losing any quality. | 【Person Vehicle Detection & Instant Alerts】Our cameras feature smart AI detection technology for precise identification of people and vehicles, minimizing false notifications. Receive instant push notifications and email alerts whenever motion is detected. | 【16CH 4K Expandable camera system】This is 16Channel 8MP PoE NVR, It provides you the flexibility to extend additional cameras. You can add more (only ZOSI) 8pcs 8MP,5MP, or 2MP POE Bullet or dome cameras. | 【Stable Plug and Play PoE System】Simple PoE connection makes it easier to set up and install your home security camera system. Unlike the CCTV DVR systems, videos from the IP camera system will not be degraded or destroyed by cables.The digital signal will keep a real 8mp high-definition image via ethernet cables. | 【Continuous 24/7 Recording with 4TB Hard Drive】Built-in 4TB 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.