Smart AI Human Vehicle Detection-- Reduce false alarms and save storage space. 4K Superior Definition-- 8 million pixels, 134° diagonal field of view. IP66 Durable Housing-- Metal housing, indoors or outdoors, fully weatherproof. Capture and Record Audio-- Cameras capture sound and NVR record it. Power over Ethernet, Plug and Play. PoE NVR provides power to cameras via ethernet cables. 16CH 12MP NVR-- Support 16pcs 12mp/ 8mp/ 6mp poe ip cameras, multiple add-on options from ONWOTE. (upgrade to a 12MP NVR starting 11/28/2024.) 24/7 Local Storage-- 4TB hard drive for 24/7 recording, 2 HDD ports support 20TB. 16 Channel Synchronous Playback-- Playback 16 cameras simultaneously on HD monitor or computer. Troubleshoot Technical Issues-- We offer 24/7 professional technical support-- Amazon Messages or 0.5-2h PHONE support. ONWOTE 16 Channel 4K PoE Security Camera System, 12MP 16CH Commercial NVR 4TB, 16x 8MP 134° Outdoor IP Cameras with Audio, AI Detect Human Vehicle, 100ft 60ft Ethernet Cables, Wired CCTV for Business