ZOSI 16CH 4K PoE Security Camera System, 12pcs 4K Outdoor Indoor PoE Cameras, Person Vehicle Detection, 2 Way Audio, Sound&Light Siren, Night Vision, 16Channel 8MP NVR with 4TB HDD for 24/7 Recording - 16HK-2258AW12-40-US

• 【Person Vehicle Detection & Instant Alerts】ZOSI 4K PoE camera is equipped with AI technology to precisely detect people and vehicles, reducing false notifications. Receive instant push notifications and email alerts when motion events are detected in your home or business. 【4K Ultra High Definition & 100ft Night Vision】This camera boasts a high-definition 4K CMOS image sensor for enhanced color, contrast, and low-light performance. With up to 100ft of night vision and an advanced starlight sensor, it captures brighter full-color videos day and night. 【Two-Way Audio & Sound Light Alarm】Stay connected with your family using the built-in microphone and speaker. Talk to your kids, comfort your dog, or greet delivery personnel through the free Zosi Smart App. The ultra-bright spotlight and siren activate when human motion is detected, deterring intruders. 【16CH 4K Expandable PoE NVR】Our 16 Channel 8MP PoE NVR system offers simple setup and expansion options. Add more (ZOSI only) 8MP, 5MP, 4MP or 3MP PoE bullet or dome cameras to customize your security system. 【24/7 Recording with 4TB Hard Drive】The built-in 4TB security-grade hard drive provides reliable 24/7 recording. It supports long-duration continuous recording and USB backup. The NVR can automatically overwrite the oldest footage stored internally, or you can transfer these video files to an external hard drive via USB.