... channel cctv DVR 2, H.264 compression cctv DVR 3,22 languages 4,suppore symbian,windows mobile, iphone,android phone Specification4CH, H.264 compression, VGA, Support SATA HardDisk, Mouse, USBX2 network ... TCP/IP protocal,PPPOE,DDNS ,USB*Supports 4-channel recording and playback at the same time;*Recording ... adapterone mannualone CDone Mouseone Remote 4CH H.264 Mobile Phone View and Network CCTV DVR