Need extra security for your home, the office or your property? We"ve combined a quality 4-channel DVR with a pre-installed 500GB hard drive and four weatherproof color cameras to give you everything you need in a low-priced package. The Mac and Windows compatible DVR allows you to monitor your property anywhere you have a high-speed Internet connection - worldwide. Set it to email you when motion is detected, the hard drive is full, or if video or network loss has occurred. View live or playback footage from all of your cameras on your 3G/4G smartphone, and stream live video directly to your PC or to your iPhone, iPad, BlackBerry, Android or other mobile device using Windows Mobile Professional or Symbian OS.