Astak CCTV 4 Channel Video Audio H.264 Real-time Security Surveillance DVR system with 500GB Hard Drive, Network and Internet Viewing Monitoring System Support Remote/Mouse with 4 Indoor/Outdoor Hi-Res Night Vision Cameras (DVR+Four 380 TVL Cameras) Efficiently recorded video by time and event list. User-friendly graphical user interface H.264 video compression. D1/Half D1/CIF resolution. VGA output: 1024x768 resolutions Can be controlled by mouse and IR remote (remote control included).Internet monitoring function Recording can be triggered manually, by motion or by schedule for real-time or time lapse recording Multi-operational mode: live viewing, recording, playback, networking and backup can all be performed simultaneously