* High quality Color CMOS sensor for crisp, clear images. * Built-in microphone for audio monitoring. * have 8 Infra-red LED on the camerafor Nightvision (Day & Night Uses). * 3-channel operation allows multiple (1-3) camera system. * Long operation range: up to 100M clear line-of-sight or 30M through obstructions (walls/ceilings). * Ideal for Baby/Children Room Monitoring. * contact the column of bracket,the Led light will be turn on