ZOSI 4K 16CH Spotlight PoE Home Security Camera System,4pcs 4K Outdoor PoE IP Cameras,Two-Way Audio,Color Night Vision,Human Detection,16CH 8MP NVR Recorder with 4TB HDD for 24/7 Recording

4K 8.0MP Ultra High Definition and Color Night VisionFour 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.
Remote Access & Human Motion Detection & Smart Light AlarmFree app for live view & Playback on Mobile Phone with Wi-Fi anywhere anytime. This camera is alert and ready to react to any potential danger via a smart light alarm system - triggered by human motion events or controlled manually to keep troubles away.
Continuous 24/7 Recording with 4TB Hard DriveBuilt-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.
16CH 4K Expandable camera systemThis is 16Channel 8MP PoE NVR, It provides you the flexibility to extend additional cameras. You can add more (only ZOSI) 12pcs 8MP,5MP, or 2MP POE Bullet or dome cameras.
Stable Plug and Play PoE SystemSimple 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.