【4K POE Camera with Starlight Night Vision】Super HD 4K CMOS image sensor and F1.6 large aperture help the Poe camera system capture more light than normal cameras for improved color, contrast and low-light performance. Thanks to the starlight color night vision and 100ft night vision range, this 4k CCTV camera system can collect enough light for the human face and plate number identification, even more details when human eyes can't see anything. 【2-Way Audio and Quickly Remote Access】ZOSI Poe CCTV camera kit has built-in microphone and speaker that helps you to talk with family and guests, or warn unwanted people from anywhere. The free ZOSI App allows you to remote live views and playback from smartphones, and PC anywhere, anytime. IP66 durable weatherproof housing makes the Poe camera kit can be used indoors and outdoors. 【Stable Plug and Play POE CCTV System】Power Over ethernet means the 4K Poe camera connects to the NVR with a single cable that transmits both data and power, no need to connect the power cable, lower risk of electric leakage, and easy to set up. Unlike traditional CCTV DVR systems, this digital signal will keep a real 8mp Ultra HD image via ethernet cables. 【AI Human Detection, Spotlight and Siren】When ZOSI 4k security camera system detects human movement, it will activate the spotlight and siren to scare away any potential danger people, the email and notifications with images are also pushed to you. You can customize specific motion detection areas in each camera to minimize false alerts. 【Expandable Camera System with 2TB Hard Drive】8 Channel 8MP CCTV camera system can provide you the flexibility to extend additional cameras. You can add more 4pcs POE surveillance cameras(only ZOSI). This system also can provide continuous 24/7 recording with the built-in 2TB hard drive, and support ultra-long continuous recording and backup by USB.