Specification AudioInput : RCA BatteriesIncluded : 1 BatteriesRequired : 1 Brand : ZOSI BulletPoint1 : 【4K 8.0MP Ultra High Definition and Color Night Vision】Four times the resolution of 1080P.This Ultra HD 4K CMOS Image Sensor allows the camera to capture more light,which improves color,contrast,and low-light performance.In 4K resolution.Record everything with sharper details with the high Pixel count and be able to digitally zoom into far away objects without losing any quality. BulletPoint2 : 【Person Vehicle Detection & Smart Alerts】Precisely Detect Person Vehicle,The camera is smart enough to detect people or vehicles from other objects and safely reduce unwanted notifications.you will receive instant App push notifications,email alerts and sound alarms (siren) when motion events are detected. BulletPoint3 : 【4K 8 Ports NVR Upgrade 16CH Expandable】This 4K 8-port NVR can expand up to 8 PoE cameras. If you additional purchase a PoE switch (not included), you can update to 16 channel system. It provides you with the flexibility to expand additional cameras. You can add more (ZOSI only) 8MP, 5MP or 2MP POE bullet heads or dome cameras. BulletPoint4 : 【Two Way Audio & Remote Access】The PoE IP camera Built-in mic and speaker let you stay in touch with your household. So you can talk to your kids or tell your dog to stop barking, or say hello to the delivery man through the Free Zosi Smart App. Free app for live view & Playback on Mobile Phone with Wi-Fi anywhere anytime. BulletPoint5 : 【Continuous 24/7 Recording with 2TB Hard Drive】Built in 2TB Security Grade Hard Drive,users are provided reliable 24/7 recording.Support ultra-long continuous recording and backup by USB. NVR can be set to automatically overwrite the oldest internally stored footage or you can transfer those video files by USB to a memory stick or external Hard Drive. CameraDescription : Front CameraDescription1 : Front CameraDescription2 : Rear Color : Black Color1 : White Color2 : Black CompatibleDevices : Cameras CompatibleDevices1 : Smartphones CompatibleDevices2 : Personal Computers CompatibleDevices3 : TV CompatibleDevices4 : Laptops CompatibleDevices5 : Tablets ConnectivityTechnology : Wired ConnectivityTechnology1 : HDMI ConnectivityTechnology2 : VGA ControlMethod : remote CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 6941709223274 ExternallyAssignedProductIdentifier2 : 06941709223274 ExternallyAssignedProductIdentifier3 : 00695529036939 FrameRate : 20fps HardwareInterface : usb3.0_b HardwareInterface1 : hdmi HardwareInterface2 : usb HardwareInterface3 : vga IncludedComponents : 4K Ultra HD 8-Channel Security System with 2 TB DVR and Four 4K Ultra HD Color Night Vision Bullet Cameras with Smart Home Voice Control IncludedComponents1 : 1 x 8CH 4K 8MP NVR with 2TB Security Grade Hard Drive IncludedComponents2 : 4 x 4K 8MP POE CCTV Cameras IncludedComponents3 : 4 x 60ft Ethernet Cables IncludedComponents4 : 4 x Mounting Screw Kits IncludedComponents5 : 1 x NVR Power Supply ItemName : ZOSI 4K PoE Security Camera System with Spotlight,8 Ports 16CH 8MP NVR with 2TB HDD,4pcs 4K Wired Outdoor Indoor PoE IP Cameras,Person Vehicle Detection,2 Way Audio,Night Vision,for 24/7 Recording ItemPackageDimensions_Height : 44.2976 centimeters ItemPackageDimensions_Length : 19.8882 centimeters ItemPackageDimensions_Width : 30.4038 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : surveillance-dvr-kits LowLightTechnology : Night color Manufacturer : ZOSI MemoryStorageCapacity : 2 TB ModelName : 8SN-2258AB4-20-US ModelNumber : 8SN-2258AB4-20-US NightVisionRange : 65 feet NumberOfBoxes : 1 NumberOfChannels : 8 NumberOfItems : 1 NumberOfLithiumMetalCells : 1 OperatingSystem : Linux OperatingSystem1 : Android OperatingSystem2 : iOS PackageLevel : unit PartNumber : ZS-1020 PowerSourceType : Corded Electric ProductDescription : 【Upgraded Tech】Advanced Vehicle/Person Detection Tech recognize Person/Vehicle appeared In the video feed and notify you via Mobile APP instantly,which can be tracked back in Smart Playback Function,and is convenient for searching the videos with human moving and the situation.Various Playback Mode: Sync Playback (4 cams at most at a time)/Daydeparting /Smart Express/Common Playback,etc;Sync Playback,Video Backup and Motion Detection Backup are supported by this home security system. ProductSiteLaunchDate : 2023-02-15T08:51:08.882Z RecommendedUsesForProduct : Home Security RecommendedUsesForProduct1 : home RecommendedUsesForProduct2 : business RecommendedUsesForProduct3 : Indoor RecommendedUsesForProduct4 : Outdoor RecordingMode : Event, Manual, Schedule RecordingMode1 : Event RecordingMode2 : Schedule SignalFormat : Digital Size : 4K POE-4Cam SkipOffer : 1 StreetDate : 2019-10-30T00:00:01Z Style : 4K POE-4Cam SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TotalUsbPorts : 3 UnitCount : 1 UnspscCode : 46171610 VideoCaptureResolution : 4K VideoInput : RJ45 VideoInput1 : HDMI VideoInput2 : VGA VideoInput3 : VGA VideoInput4 : BNC ViewingAngle : 110 degrees Voltage : 240 Wattage : 10 watts