... ,windows mobile, iphone,android phone Specification4CH, H.264 compression, VGA, Support SATA HardDisk, Mouse, USBX2 network, Audio,RS485, IE browse,10 languages ... *1CH Audio input ,1CH Audio output;*Support TCP/IP protocal,PPPOE,DDNS ,USB*Supports 4-channel recording and ... 1500G*Built-in 3322,Edvrddns,dyndns,myq-see,no-ip DDNS Free domain namesSupport Chinese/Traditional Chinese/Russian/English ...