4K Superior Definition- 8 million pixels, 134° diagonal field of view. Smart AI Human Vehicle Detection- Reduce false alarms and save storage space. Capture and Record Audio- Cameras capture sound and NVR record it. Output audio to a HD TV or mobile APP. IP66 Durable Housing- Metal housing, indoors or outdoors, fully weatherproof. Infrared Lights- Enable infrared lights automatically at night, IR night vision up to 100ft. Add-on to ONWOTE System- Work with ONWOTE 12MP/ 8MP PoE NVR or PoE switch with 48V-54V power supply. Troubleshoot Technical Issues- We offer 24/7 professional technical support- Messages or 0.5-2h PHONE support.