[8-Channel Expandable] Our ZOSI 2K 8CH All-in-one Wireless Security Camera System includes a 4MP 12.5 inch LCD Monitor and 4pcs 3MP Outdoor Indoor Spotlight Home WiFi Cameras. The wireless cameras and NVR monitor are auto-paired during the factory setting, making it easy to set up. Plus, this system is expandable, allowing you to add more 4pcs cameras for comprehensive coverage. Please note that it only supports ZOSI IP Cameras (ZG3023A). | [Smart Motion Detection & Spotlight Siren] With our Zosi Smart app, you can live view and playback on your mobile phone anywhere anytime. The system is equipped with human motion detection, ensuring that you receive real-time alerts on potential dangers. Additionally, our smart light alarm system can be triggered by human motion events or controlled manually, providing an extra layer of security. | [Two-Way Audio] Stay connected with your household even when you're away. The built-in microphone and speaker allow you to talk and listen through the ZOSI Smart App. Whether you want to check in with your family, tell your dog to stop barking, or simply say hello, our two-way audio feature keeps you connected and reassured. | [24/7 Recording with 1TB Hard Drive] To ensure reliable recording, our system comes with a built-in 1TB Security Grade Hard Drive. This allows for long continuous recording and backup, giving you peace of mind knowing that all important moments are safely stored. The NVR can be set to automatically overwrite the oldest footage or you can transfer video files to a memory stick or external hard drive via USB. | [Important Noted]The WiFi security cameras and the NVR require the power connection, as they are not battery cameras. Wireless security cameras connect wirelessly to a NVR, but they need to be plugged into a power source for continuous recording. It only support 2.4GHz WiFi. Also the NVR requird an Ethernet cable connect to your router.