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. Why do you need to buy one? Mobile baby monitors make it possible for parents to keep tabs on their infants without the necessity of staying awake or standing outside the nursery door all night. Although the video option seems like a brilliant idea, you still won't be able to stare at the screen all the time. For that reason, you definitely shouldn t sacrifice an excellent sound quality over supplementary features. Keep in mind that the best baby monitors are not always the most costly ones. 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. 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. These wireless interferences are usually caused by other wireless devices around the house like the wireless phone or a router. Other wireless baby monitors from your neighbor s house can also cause interference. Fortunately, there are ways to solve these kinds of problems like adjusting channels or changing frequencies. 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. Most modern wireless devices are equipped with capabilities of channel adjustments. This is one way of patching up interference problems. Baby Monitors For Deaf People The sound of a baby crying is definitely one of the most precious things in life that some parents take for granted. The case is different though with a deaf mother or father. Not being able to hear your little one is upsetting enough. What makes matters worst is the fact that a lack of ability to perceive sound can sometimes put your infant's safety at risk.