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. These interferences can also cause sounds to be muffled and inaudible. So Are EVPs Real? Do you believe in ghosts? Baby monitors are devices, either audio or video, that can help you check up on your baby even if you are not physically present with him or her. This is most helpful to parents who need to be constantly on the go but still want to watch over their baby while doing other productive activities. When are Baby Monitors Useful? Sensory monitors even send alarms whenever it cannot detect movement from the baby for 20 seconds or more. Even the simpler models of these monitors like the audio monitor at least keeps the parents aware if their baby needs them, especially when the child cries. With this technology, parents are given a way to make sure that their baby is safe especially during times when no one is left inside the room to watch the child. " Interference Since a baby monitor is basically a wireless device, it is highly possible to experience interference with the signal. You and your next-door neighbors may utilize similar channels and wind up hearing noises from each other's homes. Cordless telephones may also interfere with your signal. These days, most cordless phones operate on the 2.4GHz frequency band. Therefore, if you use the same channel for your baby monitor, you'll definitely encounter problems with the signal. 2. Adjust the channel. The majority of modern wireless devices allow the changing of channels in an attempt to fix interference issues. Disadvantages of Using Professional Wireless Baby Monitors LCD The biggest disadvantage of using professional wireless baby monitors is its cost. Compared to using off the shelf gadgets, professional ones will cost way much higher. This is expected of course since you will be given the best possible baby monitoring system they can provide.