... 32G TF CardsSuper Client1,4,9,16,25,36, 64,81-channel , no user limited , centralized monitor, remote record and playback ... ,DNS,DDNS,NTP,UPnP,RTSP,PPPoE , etcWIFIWIFI 802.11 b/g/nVisitors OnlineSupport 8 visitors viewing on line at the same ... , NAS drive compatible, infrared night vision and Wireless 802.11b/g/n