The majority of modern wireless devices allow the changing of channels in an attempt to fix interference issues. It may be as easy as sliding a switch or pushing a button. Then again, if you're using a wireless router, you'll have to use your computer in order to resolve the problem. Remember to steer clear of the router's lowermost or uppermost frequency bands if you're using an analog phone that's set in 2.4GHz. One particular product consists of receivers that come in two parts: a main clock and a tiny sound sensor. The main clock functions as the sound-alarm system and is equipped with a vibrating rod attachment that should be positioned under the parents' mattress. Each time the baby wails, the alarm system triggers the rod to forewarn and awaken the parents. Central apnea is very rare in adults but quite common in babies especially those who were born prematurely. Unlike obstructive apnea, this can happen at any time of the day. The third type of apnea is called mixed apnea. This condition is the combination of obstructive apnea and central apnea. This is particularly very common in infants. The most disadvantageous aspect of these wireless devices is interference. Wireless interference may come as irksome sounds, static sounds or buzzing sounds. In video monitors, interference may come in the form of fuzzy or static reception. These wireless interferences are usually caused by other wireless devices around the house like the wireless phone or a router. Compactness The smaller the size of the baby monitor, the more effortlessly you can carry it around. Be sure that you buy a model that allows you to place the receiver inside your pocket. An option that lets you wrap the portable device around your waistline is also an excellent alternative. Sound-activated Light It can be difficult to monitor baby sounds if you're trying to vacuum the floor or watch television. When examined by experts, these sounds can t be technically explained. But when examined by professional ghost hunters, they turn out to be ghost voices also known as electronic voice phenomenon. Baby Monitors and Interference Baby monitors can either be wired and wireless. Both types of devices have their own advantages and disadvantages.