[4K NVR with 8 Ports Expands Up to 16CH] The 4K 8-port NVR can expand to 8 FoE cameras. By acquiring a PoE switch(not included), you may upgrade it to a 16-channel system. This gives you greater flexibility when installing additiona cameras. Additional (ZOSI only) 8MP, 5MP or 2MP POE bullet or dome cameras can be added | [8Pcs 5MP Weatherproof Camera] These cameras are made of aluminum metal and may be installed both indoors and outdoors. The camera 's automatic IR-CUT filter ensures a clear and crisp image day and night. Enjoy up to 120ft night vision in complete darkness and 160ft night vision in normal lighting settings. The cameras enclosed in an aluminum weatherproof camera, can be utilized both indoors and outdoors. | [Remote Access, Motion Detection, and Instant Alerts] The open-source app and wi-Fi allow you to get live streaming and replays on your mobile phone from anywhere and at any time. Set up a distinct motion detection zone for each camera to limit the number of false alarms. | [Plug and Play PoE System] The simple PoE connection makes it easier to set up and deploy your home security camera system. The digital signal transmitted through Ethernet cables provides an accurate 8MP high-definition image. | [Live View and 24/7 Recording] This system includes a 2TB security-grade hard drive, allows users to record continuously 24 hours a day. It has extended continuous recording and backup capabilities. The NVR may be set to automatically replace the oldest internally stored footage, or users can transfer video files to a memory stick or external hard disk using USB. It also allows for remote access, live video, and playback by multiple family members.