Another minor disadvantage of this kind of baby monitoring is that you have to confide with the company if you want something to be changed positions, monitoring gadget, monitoring system, etc. Unlike when using your off the shelf baby monitor which you can position to your liking anytime anywhere, you still have to wait for their personnel to come and do it for you. Having an indicator on the gadget that activates whenever the battery is low prevents instances of the battery running out without you knowing. Not having this feature could be very dangerous to the child because one might not notice that something wrong has already happened if the monitor stops working when the battery drains. What Is a Baby Monitor and How Does It Work? A baby monitor is a gadget set that has a transmitter and receiver, which sends either sound or video (depending on the type) for the parent to be able to supervise the activities of the baby while he or she is away. There are different types of these monitors the audio, video or sensory. Baby monitors are good for this kind of activities since they are quite sensitive to sounds as well as other factors in the environment. There have been a lot of reported cases by parents that they are getting signals from the baby units that are not relevant to the baby or the environment. Instead, they receive muffled, indefinable, and sometimes almost inaudible sounds which resemble voices and words coming from a human. From the simple transmitter and receiver device, different baby monitors have been developed. Currently, there are two types of baby monitors: video baby monitors and audio baby monitors. Video baby monitors, as the name implies, use video footages for overseeing events in the room where the baby is located. One-way monitors from the name itself, basically only transmit sound through a single channel wherein parents can hear the sounds that their baby makes from the other end. However, the much-improved two-way monitors can allow parents to talk back to their child with their own portable transmitter. Parents who have children with separation anxiety often prefer this type of monitor, as hearing a familiar voice could usually calm the child.