?24/7 Recording & 1TB Hard Drive?Support Ultra-Long Continuous Recording and Backup By USB. It can be set to automatically overwrite the oldest internally stored footage or you can transfer video files by USB to a memory stick or external hard drive. WiFi security camera system supports 2.4GHz WiFi (not support 5GHz WiFi). ?Easy installation & IP66 Weatherproof?No need to run cables all over your house. Simply plug in the adapters and go. The connection between the NVR and cameras is through your internet and the video will show up. IP66 weatherproof design for years of reliable outdoor use, even in harsh weather conditions. ?Two-Way Audio & Remote Access?Built-in mic and speaker let you stay in touch with your household. Remote access and control anytime anywhere you want. Check in with the family or tell your dog to stop barking, or say hello through the ZOSI Smart App. ?2K Super HD & Color Night Vision?3MP Resolution camera, super HD image, let you see the every details of the monitoring clearly on the ZOSI Smart Phone APP. And it supports optional color 80ft night vision which allows you to see more detail whether day or night to keep more of what you love safe. ?355° AI Human Detection & Real-time Alerts?You can remote the security camera to monitor all-round with the rotation of a vertical 140 degrees and a horizontal 355 degrees. This camera is smart enough to detect human motion and automatically help you avoid trouble. Instant notifications with image will be pushed to your smartphone via iPhone/Android App.