Support 10.1 inch LCD monitor・ no need to buy monitor・ save assemble cost・ 960P(1280x1024) IP HD cameras give you crystal clear videos day and night・ 2.4GHz 4ch wireless transmission・ no need for cables・ save the costSmart link technology: cameras are connected to nvr automaticallyTransmission distance up to 328' or 100M・ and can travel through walls up to 100' or 30MSurf the internet by one-step・ access and control. scan QR code on DVR from desired app to instantly access live viewing and playback Easy Preview remote playback on your smartphone and computer from anywhere anytime; receive email alerts and mobile notifications when motion is detected.