These helpful gadgets serve as an extension of a person's hearing or visual range. Parents who are hard of hearing or deaf also share the same opinion about baby monitors. Even though they put up with a lot of difficulties in caring for their babies, the ounce of reassurance they get from using such devices is more than welcome. Both types of baby monitors, audio and video, can either be wired or wireless. The wireless devices may, in some cases, be more advantageous than the wired devices since you will be able to go anywhere anytime for as long as both devices are within range. The set back of this setup though is that wireless connections seem to be more affected with different interferences than the wired devices. 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. Baby Monitors and Interference Baby monitors can either be wired and wireless. Both types of devices have their own advantages and disadvantages. For wireless devices though, one of the disadvantages is interference. Interferences can be in the form of intercepted voices from other wireless devices such as wireless phones or static sounds. Wireless baby monitors are usually the gadgets that experience this kind of problem. They experience interferences because of different factors one of which is the use of other wireless devices either in your flat or in the flat of other tenants. Luckily, there are several ways on how to, if not eliminate, at least minimize the existence of interference. 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.