【3MP Dual Night Vision & All-Weather Metal Housing】--Crisp 3MP resolution captures sharp details day and night, with dual-mode vision: Full-color footage (powered by built-in warm light) or infrared B&W for total darkness. Encased in rust-proof IP66 aluminum housing, this camera withstands rain, snow, and extreme temperatures—ideal for outdoor/indoor security. Easy wall/ceiling mount ensures flexible installation. 【Smart AI Human Detection】--Advanced AI-powered analytics accurately identifies people while filtering out pets, vehicles, and other false triggers. Get only relevant alerts and minimize unnecessary notifications for smarter security.Customizable detection zones ensure you only monitor important areas. 【Real-Time Two-Way Audio & Instant Smart Alerts】--With a built-in high-sensitivity mic and speaker, enjoy seamless real-time communication. Get instant mobile push notifications when motion is detected. Deter threats with bright spotlights and a siren, or communicate clearly via two-way audio. Manage your security anytime, anywhere with the ZOSI Smart App. 【Flexible Storage & No Subscription】Includes 64GB Memory Card(up to 25-day motion recording for 4 cameras). Supports Hard Drive expansion (sold separately) for 24/7 recording. H.265+ compression saves 50% storage vs. H.264. All data is encrypted locally—no hidden fees or cloud subscriptions. 【Plug & Play Security System】This wifi security system requires continuous power connection (plug-in only, non-battery). The cameras wirelessly connect to the NVR via 2.4GHz WiFi while remaining powered for 24/7 recording. For complete functionality, the NVR must maintain a router connection.