This efficient and compact device is made up of two parts: the radio transmitter and the portable receiver. A baby monitor is especially useful when your little one is still very young. By means of the receiver, you will be able to monitor awakenings in the middle of the night. In this way, you will know when your baby needs feeding, a diaper change or, perhaps, your mere presence and the comfort of your touch. With baby monitors, you can keep track of your baby s even if you are doing something else in the proximity of your house. Types of Baby Monitors Baby monitors have evolved through the years. 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. These gadgets enable parents to multi-task do other chores while still being able to watch over their baby. However, these gadgets may sometimes cause annoyances rather than comfort and relief especially when you live in close proximity with your neighbours such as in flats. Wireless baby monitors are usually the gadgets that experience this kind of problem. The company also adds a recommendation that for parents to have total peace of mind, they can position the monitoring device at least a meter away from the child. Going digital in such technologies has many benefits, but there really are minimal risks involved. The digital models of baby monitors have proven over the years to be better in reception as compared to that of the older analog version. In order to set up a multi-room monitoring system, some parents purchase more than one baby monitors. By simply positioning one radio transmitter in each room, you can listen to the sounds coming from your baby's room even if you're busy with house chores or other stuff. Then again, this added capability comes with a number of drawbacks. In babies, this could be a congenital defect. Central apnea is very rare in adults but quite common in babies especially those who were born prematurely. Unlike obstructive apnea, this can happen at any time of the day. The third type of apnea is called mixed apnea. This condition is the combination of obstructive apnea and central apnea.