A baby monitor, basically, is a radio transmitter that lets you listen to sounds coming from your baby's room. 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. Since these digital devices make use of signals like electro magnetic waves, they may cause health problems to babies especially when they are at that stage when growth and development is on "rapid mode." A solution developed to counter this problem simply states that parents should put the baby monitor as far away as possible from the child without sacrificing the quality of monitoring. Even the simpler models of these monitors like the audio monitor at least keeps the parents aware if their baby needs them, especially when the child cries. With this technology, parents are given a way to make sure that their baby is safe especially during times when no one is left inside the room to watch the child. On the other hand, receivers are being carried around the house or place somewhere that is accessible to the mother or whoever it is designated to keep watch of the baby. Usually, the transmitter is plugged into a socket from its stationary position while the receiver is battery operated since it could be brought anywhere. The Different Types of Apneas The word apnea has its origin from a Greek word which means without wind. It is the medical term used to describe the occasional cessation of breathing of a person. Even though it is normal, it may also be a symptom of something more serious that is health related. Basically there are three types of apnea: obstructive, central and mixed. 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. The baby monitors could interfere with each other. For that reason, you need to make sure that they are set in different frequency bands; otherwise, you will only be able to hear irritating electronic screeches.