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. LCD or Liquid Crystal Display are the choice of manufacturers in video baby monitors since it is light, and is the best mobility wise compared to CRT devices. Baby monitors that use live video feeds may only be of two things: wired or wireless. Wireless devices are convenient and are the good partners for video baby monitors that use LCD screens as the parents unit. All they need is a computer with Internet access and voila! Instant video feed direct from the baby s room. The other type of baby monitor is the audio baby monitor. This is the descendant of the basic uni-directional system used by basic and usually old monitors. These new types of baby monitors however have been integrated with new technology. Since babies are still quite photo or light sensitive, switching off the lights will greatly benefit them. And with you having a video baby monitor with night vision capability, will still be at ease since you will still be able to see your baby clearly on your monitor. Wireless Baby Monitors Baby monitors can be wireless or wired. As helpful as these gadgets may be, they could also turn out to be a nuisance every time you encounter interference problems. 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. In the case of using baby monitors in blocks of flats with a dozen or more tenants, the devices may encounter several problems which include interference. Resolving Wireless Baby Monitor Interference Baby monitors are devices that help parents watch over their babies. But no matter how these gadgets may seem to help, there are times when they become annoying especially when you encounter interferences.