4 channel home Security System

Specification:Video/Audio Input,Video CompressionH.264,Video StandardPAL 625 line,50 f/s;NTSC 525 line,60 f/s Video Input4 Channel,Video Input InterfaceBNC (1.0 Vp-p, 75O),Audio CompressionG711A,Audio Input4 Channel Audio Input InterfaceRCA,Two-way AudioYes,Video/Audio Output,Live View ResolutionPAL: 352 X 288 (CIF); NTSC: 352 X 240 (CIF) VGA Output1024 x 768/60Hz,Recording ResolutionCIF,Video Output (Channel)1,Frame Rate (FPS)30,Audio Output (Channel)1 Synchronous Playback (Channel)1,Dual StreamYes,Hard Disk Driver,Interface TypeSATA,Single Capacity2,Max Capacity (T)2 External Interface,Network InterfaceRJ45 10M/100M/1000M Adaptive Ethernet Interface,USB2.0 Interface2,DVR - Additional Features:Support System Microsoft Windows XP, Symbian, iPhone iOS, Windows7, Android,LanguageEnglish, Portugues, Italian,Espana, Francais, Russian, Japanese, Simplified Chinese, Polish, Greek, German.