SIMICAM 4K 8MP PoE Security Camera System, 2.8mm 4PCS IP Camera for Indoor Outdoor, PoE NVR 8CH with 2TB Hard Drive, Face Detection Two-Way Audio Video Surveillance - 4K POE-2.8

• 【4K 8-Port POE NVR Expandable 10 Channels】This NVR comes with 8 built-in PoE ports (4K 8MP), which can simultaneously power 8 PoE security cameras and can be expanded to 10 channels using POE switches (not included). Max can take up to 10Pcs 4K 8MP Cameras 【Real-Time Two-way audio & Audio Recording】 The 4K POE camera has a built-in clear microphone and speakers, allowing us to hear and talk to each other on mobile applications, and hear sound from PC app or TV monitor connected to NVR 【Human Detection and Face Detection】This camera supports both human shape detection and face detection. Human shape detection can effectively filter out 90% of useless information. When you need to play back a video, you can choose the face retrieval function to play back a fixed video of a certain face, saving most of the tim（ Important Notes: Only SIMICAM PoE camera an support these functions） 【2TB HDD 24/7 Record and Smart Playback Mode at Anytime】1.Various Record Modes And playback mode: ①Regular 7/24/365 ②Alarm recording. 2.Playback Modes: ①Sync Playback (1 cams at most) ②Alarm recording Playback ③ Face Search Playback ④ Common Playback 【Area alarm&warning line alarm】 When a certain area needs to be monitored and alarmed, we can set up this area or set up a warning line. When someone invades this area or crosses the warning line, an alarm will be triggered