【AI Person Vehicle Detection& Alert Push】Precisely Detect Person Vehicle,The camera is smart enough to detect people or vehicles from other objects and safely reduce unwanted notifications.you will receive instant App push notifications,email alerts and sound alarms (siren) when motion events are detected. 【Two Way Audio & Sound Light Alarm】The 4pcs PoE IP camera Built-in mic and speaker let you stay in touch with your household. And you can set the cameras will switch on ultra bright spotlight and sound siren once human detected to scare intruders away 【Stable Plug and Play PoE System】A simple PoE connection makes it easier to set up and install your home security camera system. The digital signal will keep a real 8mp high-definition image via ethernet cables. 【24/7 Recording with 2TB Hard Drive & Live View Share】Built-in 2TB Security Grade Hard Drive, users are provided reliable 24/7 recording.Support long continuous recording and backup.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. And it supports remote access, live view and playback by multiple family members. 【H.265+ 8CH 4K Expandable camera system】--This is 8Channel 8MP PoE NVR, It provides you the flexibility to extend additional cameras. You can add more (only ZOSI) 2pcs 8MP,5MP or 2MP POE Bullet or dome cameras. The AI-based system can detect people or vehicle from other objects, thus you will only get notified about things that matter.