4 Channel H.264 compression DVR comes with everything you are looking for in a DVR; VGA, Mouse, remote, 4 Audio, Network, DDNS support, USB for backup and you can view this DVR on you cell phone (Symbian) and iPhone®. 

H.264 real-time high compression, support dual stream network transmission

Stand-alone Linux2.6 operation system

Four security camera video inputs

Two channel video output

Four channel audio record input

Two channel audio output

Graphics Windows OSD interface

Support D1, HD1 and CIF recording resolution

ADPCM audio compression

Support triplex operation: record, playback, net transmission

Support to operate with USB mouse

Support remote view with Mobile Phone

Support to backup upgrade with USB flash disk

Support to real-time remote view with IE (Internet Explorer)

Support to transmit audio via network

Support PTZ control via built-in RS-485 port

Selectable packing time for recording files

VGA output