... (n = two) 850 infrared lights, four light guide bar, data cable and related structural parts.Camera, infrared light, the light guide ... area is ± 2mminput mode any opacity itemsTouch timesunlimitedInterface TypeUSBUSB cable length length could be set according to the actual ... purchase product suite (camera module, the light guide bar, data lines, structural members), their own arbitrary size glass, is ...