【All-in-one Monitor&16CH Expandable】Surveillance system integrated with 4K HD 12" Monitor and 3TB Hard Drive, true plug and play, you can add up to 16 cameras via a PoE switch, allowing you to connect to another monitor via HMDI/VGA cable 【300°Pan 90°Tilt &Human Auto-tracking】The PTZ camera rotates 90° vertically and 300° horizontally for 330° wider security coverage with no blind spots.The smart auto-tracking feature automatically locks and tracks humans, ensuring you don't miss any suspicious 【Color Night Vision&IP67 Waterproof】This wired security camera system has two-night visions to adapt to your needs: ①Color night vision: All nighttime details are vividly captured in clarity and vibrant colors.②IR night vision:The image is black and white by default and turns into color vision once a human is detected 【Two-way Audio&Free APP】Built-in camera microphone,so easy to talk directly on the free app warning that suspicious persons have entered the surveillance area at any time anywhere. And remotely access live/playback video with audio on the phone app after NVR connects to a router 【24/7 Recording&Smart Playback Mode】The home camera system records 24/7 continuous video with sound,auto overwrites the old footage when the HDD is full,in various Record Mode like ①Regular 7/24/365 Mode ②Motion Detection Record mode,allows you to choose the crucial moment to playback 【Work with or without Internet 】 For only local TV monitor home surveillance, the security system can work without the Internet.But you need to connect NVR to a router if you want to remote access cameras on APP/PC Client Software 4K POE NVR Security Camera System,330° Pan 90° Tilt wired security camera,human auto-tracking and detection for home survelliance outdoor/indoor,pre-installed 3TB HDD for 24/7 recording