With the new feature of these monitors, parents are not only able to provide for the safety of their children by being able to hear possible problems from a distance, but they are also given the chance to solve certain problems or bond more with their child by talking through the portable parent unit. With these devices, you will still be able to monitor your baby even if he or she is in another room. What Are Baby Monitors? Basically, a baby monitor, also known as a baby alarm, is a device that can be used to monitor your children or babies even if they are located in a separate room than yours. It is a simplex transmitter and receiver system that can be used to remotely listen for different noises made by your kids and babies. Basically there are three types of apnea: obstructive, central and mixed. Obstructive apnea is most common in babies and children. It is caused by obstructions in the airway such as adenoids and enlarged tonsils. This is quite dangerous especially for babies since it usually happens during sleep time. This way, exposure to the harmful waves is, if not eliminated, at least minimized. This next issue can be a disadvantage for some people but not for others. This issue is about the price. Digital baby monitors are quite more expensive compared to other baby monitors. This is expected though since it is using the latest of modern technology. Unlike the baby monitors off the shelf, professionally installed ones usually make use of high end gadgets in watching over your baby. The Types of Baby Monitors Basically there are two types of baby monitors: audio and video baby monitors. Audio baby monitors only make use of sounds while video baby monitors make use of a camera and transmitter to send video feeds to a LCD receiver. You need to place it as far away as possible from other devices especially wireless ones. This includes router and wireless/ cordless phones. The baby s and parents units should also be placed as far away from the microwave oven since it can also cause great interference. 3) If you have money to splurge on these kinds of devices, you can go for digital baby monitors instead of the analog ones.