The other kind of baby monitor takes away this disadvantage of distance. Wireless technology is already being used in baby monitors. You can move freely around the house and complete your chores while still being able to monitor your baby. Wireless Baby Monitors can be used to either audio or video baby monitors. If two devices are running on the same frequency, it will cause interference. So to prevent this from happening, you should try to change the frequency of either device. Wireless baby monitors are usually equipped with switches that allow parents to change frequencies easily. The next option in fixing interference is by properly placing the baby monitor, both the baby s and the parent s units, in the proper location. While some ghost hunters use sophisticated gadgets and devices to hunt down ghost phenomenon, there are those who use baby monitors. Baby monitors are good for this kind of activities since they are quite sensitive to sounds as well as other factors in the environment. There have been a lot of reported cases by parents that they are getting signals from the baby units that are not relevant to the baby or the environment. Simpler monitor models will do for smaller houses, but you may need a more sophisticated monitor system for a larger house. The lifestyle and the type of work that you have to do around is also another important factor to consider, especially if your work requires you to be farther away from your baby s room and you may need a monitor that covers the range, particularly a portable one. One problem of analog baby monitor devices is the fact that there are instances when neighbours can actually tap in to the signal of your baby monitors and listen. With the digital technology, privacy is kept since it broadcasts private signals that only you, the parents, have access to. Another dilemma that has plagued analog baby monitors before is the range. 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. And as babies, they still can t articulate whether they are already experiencing symptoms of the condition. Symptoms of this type of apnea include snoring, labored breathing, gasping for air, and changes in color.