... network standalone DVROperation system:Embedded LinuxVideo I/O:4-ch video input,1-ch BNC outputAudio I/O:4-ch audio ... input,1-ch BNC outputDisplay:D1 resolution,25*4FPS(PAL),30*4 FPS(NTSC)Recording:100 , , )Image Quality:High,Normal ... pocket PC operation systemSize:200(L)*130(D)*230(H)mm Digital Video Recorder