ZOSI 16CH 4K Spotlight PoE Security Camera System,8pcs 4K Outdoor Indoor PoE IP Cameras,Person Vehicle Detection,2 Way Audio and Siren,Night Vision,8MP 16Channel NVR with 4TB HDD for 24/7 Recording - 16DK-2258W8-40-US

• 【4K Ultra HD and Color Night Vision】Capture every detail with our 4K Ultra HD camera. With four times the resolution of 1080P, our camera provides sharper image quality, improved color reproduction, and enhanced low-light performance. Record everything with high pixel count and digitally zoom into far objects without loss of quality. 【Person Vehicle Detection & Smart Alerts】Our camera is equipped with smart detection technology to precisely identify people and vehicles, reducing false notifications. Receive instant push notifications and email alerts when motion event is detected. 【Two Way Audio & Sound Light Alarm】Stay connected with your household using the built-in microphone and speaker. Talk to your kids, instruct your dog, or greet the deliveryman through the Free Zosi Smart App. Activate the ultra-bright spotlight and siren to deter intruders when human presence is detected. 【16CH 4K Expandable PoE NVR】This is 16Channel 8MP PoE NVR, simple PoE connection makes it easier to set up and install your security camera system. It provides you the flexibility to extend additional cameras. You can add more (only ZOSI) 8MP,5MP, or 2MP POE Bullet or dome cameras. 【Continuous 24/7 Recording with 4TB Hard Drive】With the built-in 4TB security-grade hard drive, enjoy reliable 24/7 recording. The NVR supports ultra-long continuous recording and offers backup options via USB. Set the NVR to automatically overwrite old footage or transfer video files to a USB stick or external hard drive for storage.