1 x 4 Channel 1080p HD NVR with pre-installed 1 TB Hard Drive. 4 x 1080p Indoor/Outdoor Wireless Infrared IP Cameras. Cameras equipped with 2-way audio. 300 ft. Wireless Signal ensures maximum coverage. No Internet required and no monthly fees! Free Night Owl X app with easy setup in less than 2 minutes. Reduces false alerts by up to 90%. 100 ft. of Night Vision, 100 Degree Wide Angle Viewing and 24/7 Technical Phone Support.Maximum hard drive capacity:4 TB.Wireless range:Max 500 ft Product Description Introducing Night Owl’s state-of-the-art Smart Detection Wireless Security System with 1080p resolution. Utilizing our Dual Sensor Technology, this system detects both motion and heat to minimize false alerts and keep you apprised of REAL threats in REAL time. This truly is innovation at your fingertips! With its own independent wireless network ranging up to 300 you will enjoy uninterrupted video without interference from other Wi-Fi networks.