Question 1: Can I add more cameras to this system? You can add more (only ZOSI) 8MP, 5MP, or 2MP POE Bullet or dome cameras. But the total number of cameras connected to the NVR should not exceed 8. Question 2: How to get the 4K 8.0MP resolution. (1) Please make sure that your TV monitor is 4K or better than 4K resolution, and connect the NVR to your TV monitor. (2) Setup the system, and go to Main Menu- Set up-Basic to change the “Video Output” to “3840 2160″ manually. The default setting of the NVR is 1024 x 768. If the monitor resolution is lower than 4K, then the system will not show the 4K resolution. Question 3: Why can’t I hear audio when watching live on NVR? The NVR can transmit audio only when the monitor/TV is connected via HDMI cable, otherwise the monitor/TV will have no sound output. View live feed, replay footage, and customize settings from your mobile devices, whenever and wherever, with an all-in-one ZOSI Smart App/AVSS Client. View & Talk from Anywhere. Not only watch ultra-clear live video, you can also hear and talk directly to anyone who approaches via 2-way audio. Protect What Matters Most. The camera system allows you to set up specific detection areas to focus on what you really care about. Save Hard Drive Space. 265+ coding compresses video file sizes without quality degradation, thus saving lots of storage space for longer recording time and a better viewing experience. This 4K camera kit covers every corner of your house 24/7 with up to 8 cameras recording continuously. This item is in the category “Consumer Electronics\Surveillance & Smart Home Electronics\Home Surveillance\IP & Smart Security Camera Systems”. The seller is “zosi_security_home” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Thailand, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Bahrain, Croatia, Republic of, Brazil, Chile, Colombia, Costa Rica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Ecuador, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Vietnam, Uruguay.

• Number of Channels: 8
• Model: 8DN-2258W4X1828W4-20-US
• Maximum Resolution: 3840×2160
• Colour Mode: Colour
• DVR Recording Mode: Continuous, Time Shcheduled, Motion Detection
• IR Night Vision: Visible up to 100ft
• Camera Feature: Indoor/Outdoor; Day & Night, Spotlight,2-way talk
• Surveillance DVR Feature: 4K Ultra HD, Audio Record,Motion Detection,H.265+
• Camera Type: Dome/Bullet
• Colour: White
• Camera Resolution: 8MP (3840x2160px)
• Color Mode: Color
• Smart Home Compatibility: ZOSI, Amazon Alexa
• Location: Indoor/Outdoor
• Surveillance Technology: CCTV
• Power Source: Hardwired
• Connectivity: POE, DisplayPort, HDMI Standard, USB 3.0, Wi-Fi
• Number of Zones: 8
• Type: Surveillance Camera
• Features: Infra Red, 2-Way Audio, H.265+, 3D-NR, Spotlight, Spotlight&Siren, Add-On Camera, Automatic Motion Tracking, Instant Alert, Night Vision, Smart Light, Waterproof
• Smart Home Protocol: Infrared
• Color: White
• Operating Sound Rating: 60dB
• Storage Capacity: 2TB
• Power: 6w
• Brand: ZOSI
• Manufacturer Warranty: 1 Year
• Remote View: Scan QR Code to Remote access in seconds
• Hard Drive Capacity: 2TB Hard Drive Pre-installed
• Items Included: NVR, Camera, Motion Sensors, Outdoor Intercom
• Number of Cameras Included: 4