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. This is a very good system when it comes to baby monitors the only setback is that, the length of wires makes mobility quite impossible. The receiver would more or less just stay in one place. Wireless baby monitors however are more flexible than wired ones. Since it is wireless, the limitation that the length of wires provide does not apply to it making it more possible to move around the house while still being able to monitor your baby. If you prefer to have one radio transmitter in every room, there are actually a smaller number of choices. 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. Compared to using off the shelf gadgets, professional ones will cost way much higher. This is expected of course since you will be given the best possible baby monitoring system they can provide. Of course, if you have the money for it, then this would not be much of a problem. 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. So where should you place your wireless baby monitor to minimize wireless interference? 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. Some consider smaller devices to be more excellent than larger ones. Because of this trend, as well as the necessity for better portability, a good number of modern baby monitors are currently equipped with ultra-small receivers. Most baby monitors these days also come with receivers that have belt clips.