The Swann DVR8-2550 & 8 ADS-180 Cameras Security Monitoring System delivers everything you need to defend your home or business, safeguard your loved ones and deter intruders. It is cutting-edge surveillance technology made easy, at an affordable price. The system includes a state-of-the-art 8 Channel DVR8-2550 digital video recorder for simultaneous viewing and recording of 8 video streams locally, over the Internet or on your 3G Smartphone. The unit has H.264 video compression for fast, efficient recording and playback. You can also adjust the frame rate and image resolution with CIF real-time recording on all 8 channels (30 fps per channel, 120 fps total) and the ability to adjust the recording settings for each camera to the resolution you choose from 352 x 240 pixels (CIF) up to 704 x 480 pixels (D1). The eight Day / Night Cameras provide crystal clear video through their high resolution 400 TV Lines 1/4" Super CMOS image sensors with night vision up to 33 feet and the ability to operate indoors and outdoors. A massive 500GB SATA hard drive is pre-installed to allow up to 60 days+ of continuous recording from all 8 cameras. You can also record for longer, save time and hard drive space using the DVR8-2550's advanced motion activated recording. Even better, the time and date are integrated into your video files, allowing you to find incident footage and transfer events to a USB flash drive for easy storage and retrieval when the time is right. You can also configure the DVR to send you email alerts when activity is detected for peace of mind, all the time.