... Two-way audio 3,Nightvision is 10m wifi Original wireless WIFI Ip CameraCPUOperation systemEmbedded Linux OSMicrocomputer processor32Bit RSIC Embedded ... pixelFrame Rate25fps PAL 30fps NTSCResolutionVGA(640*480),QVGA(320*240)Video Adjustmentbrightness, contrast, chroma, saturation.minimum illumination0.1 Lux ... free)1,4,9,16,25,36 or 64 multiple video display optional in one screen, support record, alarm, ...