1.wireless cctv camera with mutil language ... telecommunications, Unicom, Netcom, Railcom, aspect and various network environment operating system: WINDOWS XP/VISTA/7 Camera facture ... CMOS sensor, the Arca and switching technique, a high definition, 600TVL color, black and white 650TVL, good ... 2 audio input.2 output* support for remote monitoring network, USB backup, to support the mouse operation, CD/DVD ...