... live, record, playback, backup, network transmission, mobile phone surveillance- Support backup with USB Flash Disk, Movable hard disk, DVD writer, Network ... channels playback at the same time- Support Action with Alarm and pre-alarm recording function- Support Email alarm- Mobile phone surveillance ( ... no-ip, changeIP, etc)Dual StreamMain stream ,Sub stream(32 kbps – 1.5 mbps)Video input8 CH, BNC(1. ...