4ch H.264 network standalone dvr 1CH Audio input,1CH Audio output Support ... cameras, body-worn covert cameras, professional counter surveillance systemFeatures:*4CH, H.264 compression, VGA, Support SATA HardDisk, Mouse ... Android mobile phone live view via 3G net *4ch separate video display and compression,video simutanelously*1CH ... 43 x 220mm, about 2.2 KGs. 4ch H.264 Easy to use network standalone dvr