✔【HD VIDEO】Security camera system uses H.265 + compression technology, twice the data compression rate, viewing pictures or videos is smoother. 8CH 1080P NVR and 4PCS 1080P IP cameras, even at night or dark areas can get clear images. Night vision ranges up to 65 feet，The NVR system does not contain a screen, you need to purchase it separately! | ✔【PLUG AND PLAY】 WiFi IP camera has been paired with the NVR system at the production site, just plug in the power to enjoy 24 hours / 7 days monitoring service。Support up to 8-channel IP camera，NVR security system and camera need to be connected to the power supply, wireless means WiFi connection | ✔【REMOTE VIEW】 Support remote monitoring of both mobile phones and PC clients. After installing the application, you can view all security cameras on the device anytime, anywhere, real-time video preview, recording, synchronized playback, and backup. With a remote control, it is convenient for you to control and adjust the NVR, keep abreast of the situation you are concerned about | ✔【MOTION DETECTION】 NVR security camera system can customize the surveillance area and detection plan to minimize false alarms. When motion is detected, smart notifications of email or snapshot alerts will be pushed to your smart phone. Let you rest assured | ✔【IP66 WATERPROOF】Outdoor security camera meets IP66 Waterproof standard and can withstand an operating temperature of -4°F to 122°F (-20°C to 50°C). It can work normally even in extreme weather such as snowstorms, widely used in villas, houses, offices, shops, hotels, warehouses, schools or other places you want.Provide one-year quality warranty and lifetime technical support。The after-sales mailbox is below the product list on the package