... H.264 Compression 4ch Audio Network DVR record 8CH H. 264 Compression 4AUDIO CCTV DVR recordFeaturesWith H.264 High efficiency Video CompressionSupport ... , support IE review and CMS(can manager over 500 units DVR)With Chinese, Russian, English, Italian, Portuguese, Spanish, …….. , ... in own free DDNS Support VGA High Definition output (1280 * 1024), support widescreen LCD(1440*900)With RS485, support PTZ ...