Evertech New Series Home Surveillance Security Camera System - 4 Channel/camera Home/office Security Camera System Network D1 DVR Remote Viewing Over Internet & 3g /4g & Cms &Cell Phones.with Weather-proof 60ft Night Vision Cctv Cameras. Embedded Linux Os and Built-in Web Server for Remote Viewing Over Internet /Smartphones /Lan /Tcp-ip. Compatible with Windows / Iphone /Andorid /Blackberry /Symbian ... Built-in 500gb Hdd