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. Since it is wireless, the limitation that the length of wires provide does not apply to it making it more possible to move around the house while still being able to monitor your baby. Almost all types of monitors, whether audio or video, can be wired or wireless. It all comes down to budget and preference. Baby monitors can easily be purchased online or in your local shops. However, there are also baby monitors that are installed by professionals. Unlike the baby monitors off the shelf, professionally installed ones usually make use of high end gadgets in watching over your baby. The Types of Baby Monitors Basically there are two types of baby monitors: audio and video baby monitors. Walkie-talkie Features This option provides you with the ability to talk to your little one through the baby monitor. On top of that, you can even play music or transmit almost anything you want to the baby. Some doting parents also make use of this feature to calm their babies down by talking to them over the baby monitor. 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. Since these digital devices make use of signals like electro magnetic waves, they may cause health problems to babies especially when they are at that stage when growth and development is on "rapid mode." A solution developed to counter this problem simply states that parents should put the baby monitor as far away as possible from the child without sacrificing the quality of monitoring.