Defender SN500-4CH-002 Feature-rich 4 Channel H.264 DVR Security System with Smart Phone Access and 4 Indoor/Outdoor Hi-Res CCD Night Vision Cameras Access live video footage directly from your iPhone, BlackBerry or Android Smartphone Record over 2 years of video footage on the built-in 500GB hard drive The system utilizes the latest, most advanced compression level available saving you storage space without sacrificing video quality View video online with no service fees from any computer in the world 24/7 lifetime live customer support is available through phone, email, and live web chat both before and after you buy