【All-in-One Security Camera System】The xmartO WSG30822 is an all-in-one security camera system that is ready to work out of box. The 8CH expandable LCD NVR/ DVR WNS58 does not even requires a monitor. Plug the NVR and cameras to power, they start to run immediately. 4 extra spaces are reserved for more cameras when you need. | 【Standalone WiFi Routers in NVR】 The NVR has its own WiFi routers inside. All cameras stream and record to the NVR via their own WiFi. This makes the surveillance system works standalone without Internet, and hassle-free to your home network. | 【Smart Versatile Cameras】 Security cameras have never been so smart and easy to use. Simply plug them to power, they start to monitor and record everything. Not only the 2K HD videos, they also pickup sounds and let you hear voices from the NVR's built-in speaker, or from your phone. The 2 indoor cameras automatically follows people/ pets in 360 degrees. | 【Easy View on Mobiles】 It's as easy as 1,2,3 to add the system to the WallPixel mobile Apps. With a single tap you can view 4 cameras simultaneously. Apps are available for iOS, Android, PC, Mac and Alexa. | 【Infra-Red Night Vision】 With professional Infra Red LEDs in each camera, the cameras to see clearly even in pitch darkness. | 【1TB Surveillance Hard Disk】 With a 1024GB surveillance hard drive preinstalled, the NVR keeps records of all 4 cameras of past 30 ~ 90 days, of which you can access, clip, backup and share anytime, from the mobile App. | 【Cloud Storage Optional】 You can choose to upload the videos to Cloud. In WallPixel App, Cloud storage powered by Amazon AWS is available for free trial, and subscription. | 【Works with Alexa】 WallPixel App learnt its skill of Alexa. You can call for a view if you have compatible Alexa devices. | 【View on Bigger Screen or Hang on Wall】With an HDMI output, you can easily connect the NVR to a TV for bigger view. And the stand can be removed so you can mount the 12" NVR on wall. | 【LCD Screen & Speaker in NVR】The 12" screen has been upgraded to higher level with much nicer image; and speaker is now built-in the NVR.