Night Owl's O-445 is an advanced H.264 smart DVR Kit complete with 4 night vision cameras and a pre-installed 500GB hard drive that provides 24/7 video surveillance of your home or business. This complete security kit allows you to access it remotely from both the internet via Mac computers running Safari 5.0 and Windows based computers running Internet Explorer. You can also access the DVR remotely through select 3G/4G smart phones including your iPhone, Android and select Blackberry models. This complete video surveillance kit comes equipped with everything you will need to set it up yourself including four night vision cameras that allow you to record up to 30 feet in complete darkness. The DVR system is packed with features like Mac and Windows compatibility, smart phone access, motion activated recording with real time email alerts, digital watermarking of recorded files, USB backup, D1 recording and a simple point and click interface. This DVR also has a 500GB pre-installed SATA hard drive that provides over 1 year of recording. Night Owl's surveillance systems do not charge any monthly fees and give you around the clock security day or night, so stop paying monthly fees for an outdated alarm system. In addition, Night Owl is one of the only security companies with 24/7 technical phone support (1-866-390-1303). Rest assured that you will able to reach us any time, any day.