8 CHANNEL SMART DUAL LIGHTS COLOR NIGHT VISION CCTV CAMERA SYSTEM: This commercial security camera system has 4pcs 5MP dual lights 2.8mm fixed lens PoE surveillance camera, each with built-in microphone & speaker for talking. The 4K 8CH NVR of this system comes with a 2TB hard drive. it has 1 SATA port to expand to total 8TB storage space ONE COMBO NVR ONLY: 4COVR Combo NVR simplifies your surveillance with an all-in-one LCD Combo Recorder, ensuring easy installation and operation. No additional monitor required, simple and cost-effective. EASY POE SETUP - TRUELY PLUG & PLAY: This NVR Security System features PoE technology, a single network cable runs power and video transmission simultaneously between NVR and IP cameras TWO-WAY AUDIO: Built-in Microphone and Speaker in a security camera system allows to listen and speak through the camera. This feature lets you interact with family, visitors, or deter intruders SMART AI PERSON/VEHICLE DETECTION: This system has intelligent AI person/vehicle detection in the video, so the system only sends alarm notifications for people and cars, filtering out other unnecessary alarms SMART NIGHT VISION MODE: The wired security camera offers Black & White Night Vision, Full Color Night Vision, and Smart Dual-light Mode options. By default, it is set to Smart Dual-light Mode. When human or vehicle activity is detected, the system automatically switches to Full Color Night Vision to reveal more details. Once the subjects leave, it reverts to Black & White mode for energy-efficient operation IP67 WEATHERPROOF DESIGN: Build with durable metal housing, our security cameras withstand the harshest weather conditions like dust, rain, and extreme temperature ranging outdoor from -20°C to 50°C REAL-TIME VIEWING, PLAYBACK & 24/7 RECORDING: The system supports local playback and real-time live view, even without the Internet. If connected to the Internet, you can also use the Elink Defense APP to view remotely and receive alarm pushes anytime, anywhere SATISFACTION GUARANTEED: We offer a 2-year Quality Assurance and lifetime technical support. Should you encounter any issues, please contact our support team via Amazon Messages or email. We are dedicated to delivering the best service possible, Manufacturer: 4COVR