1) The LCD sreen is rotable for better view angle when stands on table 2) Color CMOS camera CA200, with sound trigger feature, the trigger level can be adjusted with the tuning in camera 3) The monitor can be operated in stand by, auto, and manual modes. In stand by mode, the monitor can be activated if motion detected or sound over pre-set level 4) Transmitting over 200m from camera in open area. 5) Each wireless receiver can work with up to 3 Wireless cameras. 6) A/V output port can be connected to VCR, TV 7)has night vision feature to view picture in low light 8). Has a switch to turn on/off the night LED 9) Rechargeable battery pack can allow the Wireless camera to last for long time after fully charged 10). Low battery hint to remind user to replace the batteries in time 11). Monitor can be in portable use about 4 hours with 4 cell alkaline/NIMH rechargeable batteries 12). Both camera and monitor can be table stand and wall/ceiling mounting