H.264 realtime network mobile DVR 2xUSB, PTZ, Audio, Network, VGA 3G phone live view by Iphone,Blackberry,Android, etc 16 channel ... mobile DVR Features: 1. H.264 Real-time Recording, support USB, PTZ, ... VGAAudio Compression8K*16bit ADPCMAudio OutputRCA, 1 channelAudio InputRCA , 1 channel(or 4 channels, option)RCA, 1 channelHDD Port1 SATA port ...