500GB SATA HDD . H.264 video compression technology - reduces the size of a digital video file considerably compared to Motion JPEG format and MPEG-4 Part 2 standard . Continuously record live video for up to 30 days, enhancing the hard drive capacity and reducing the network bandwidth for real-time video streaming . Allows you to connect a PC monitor or TV display . Local on-screen control with easy-to-navigate menus enables programming using USB mouse and IR . Can be network-connected for remote internet system management and video monitoring using MS Windows IE browser from your PC or laptop . Allows remote camera viewing over GPRS/CDMA/3G/EDGE mobile phone networks from supported smartphones . Event recording by alarm sensor or motion detection . E-mail notification with JPEG snapshot for alarm triggered events. Allows monitoring live video, recording, searching, playback and backup security video events