Key 4 Channel DVR with Real-Time D1 Resolution HDMI Port for High Resolution Viewing 4 High-Resolution 600TVL Cameras 120 feet of night vision PC & MAC Remote Viewing Capabilities Free Q-See Apps for iPhone, iPad, Android, Windows Mobile and Blackberry. Instant email alerts when unusual motion is detected Pre-Installed 500GB A/V-Rated hard drive Overview A Superb Combination of High Resolution and Real-Time Surveillance With high-resolution viewing and high-resolution recording working side by side, the QT5140-441-5 bundle is the perfect surveillance solution. The QT5410 is Q-See’s 4-channel DVR with an HDMI connection and real-time D1 (704x480) video recording and playback that provides outstanding clarity and recognition capabilities. Complete with pre-installed A/V-rated 500GB hard, this DVR is ready to take control. Four premium, high-resolution 600 TVL cameras with an impressive 120 feet of night vision are also included in this system. Perfect fit for almost any use, from keeping an eye on loved ones at home to protecting your business and employees, the QT5140-441-5 bundle keeps you connected and brings you peace-of-mind. Four premium, 600 TVL Cameras The Four included cameras deliver superior image quality. With a resolution of 600 TVL and a 5.0 mm lens, these compact cameras have the capability to display accurate, high-quality images. With its 42 infrared LEDs, this powerfully small camera gives your system an impressive 120 foot range of vision in low light situations. Made of sturdy aluminum, they’re also built to last with weatherproof and rustproof housing. Indoor or outdoor, they provide the perfect solution for almost any need D1 Resolution View the crystal clear images of the four high resolution cameras in real-time D1 (704x480) resolution.