... Dual-core CPU; Steady System Function;5. Playback, video, network transmission, mobile browsing, and backup etc. work ... -screen real-time preview, settings, backup and playback video through IE; CCTV DVR Specification: BCS6504BCS5304Video CompressionH.264Video ... FunctionsTCP/IP, PPPoE, DHCP , DDNSIE Remote Preview1/4 channels preview simultaneously Mobile phone live viewsupport(Iphone, Android, Symbian ...