This is 12 Inches TFT wireless security camera system comes with 4CH 960p NVR and 4 x 960p HD outdoor night vision cameras. With built-in router and two WiFi antennas, this NVR ensures strong & stable WiFi connection for up to 1000ft in open area, up to 200ft with obstacle (one wall). This means you can install the cameras anywhere indoor and out to fully cover your home & business. In a word, just build up an all-round security system with this security kit! And buy this MOUNTAINONE 12" TFT 4CH 960P HD Wireless DVR Video Security System Now $207.99.