Video Compression: H.264.Audio compression: ADPCM. Supports standard RTSP 3G mobile phone monitoring. CMS Software. Video input &video output, VGA; audio input RCA. Voice talkback RCA; Channel alarm input & channel alarm output. CIF real time. NTSC 360×240 480fps; PAL 352×288 400fps CIF real time recording and network transmission work simultaneously Recording Modes: manual, timing, alarm, motion detection USB 2.0 and Network backup; supports multi-protocol RS485 PTZ control, PTZ preset points, cruising and tracking functions. Standard IR remote control and mouse. Network: 1 RJ45 10/100MB, TCP/IP, PPPoE, DHCP, DDNS. MAX support 2*1500GB SATA. 12. Language: English/German/Spanish/Russian/Chinese/French/ Korean/Turkish/Portuguese/Italian/Japanese.