Parents, especially busy parents, install these devices so that they may be able to observe and tend to the needs of their baby if they are located in a different place at home. But another very useful function of baby monitors is during sleeping hours. This best applies to a setup wherein the baby stays in a room separate from the parents. Another advantage of these wireless devices is the ease of setting it up. You do not have to fidget with wires to be able to set your baby monitoring system up. Just setup the wireless device for the baby anywhere you want in the room without worrying whether the length of the wire is enough to reach the other room where you will setup the receiver. In essence, a mobile baby monitor is a radio transmitter coupled with a receiver. The set is synchronized to a predetermined frequency band that gives off a frequency modulation (FM) signal once it is switched on. More often than not, these portable monitors send out signals between the range of 49,830 MHz and 49,890 MHz. Unfortunately, such instances could take place quite often if you live in a flat with very close (as in proximity) next-door neighbors. There are actually a number of ways to get rid or avoid interference issues when using baby monitors inside an apartment building. Here are some of them: 1) Change the frequency band. Although this is completely normal to some, it may also be related to some health conditions that should be a cause for concern especially when it happens to your baby. Being in this kind of predicament, you may opt to seek for the help of baby sleep apnea monitors. The Different Types of Apneas The word apnea has its origin from a Greek word which means without wind. However, with the many different kinds of monitors available in the market at present sometimes it may get confusing. Knowing the different types of monitors and what to consider will surely help you in making a choice. What are the types of baby monitors? In selecting a monitor that best fits your family, you have three major options to choose from an audio, video or a sensory monitor.