For that reason, it is better to purchase one that features a channel adjustment capability. This way, you can change frequency bands every time you encounter interference problems. Of course, you also need to factor in the cost of buying a baby monitor. The high-end versions can cost as much as $300 dollars or more. What baby monitors basically do, is allow the parents to know their child s activities and to watch out for any possible problems from afar, especially if the baby is asleep. Through this, they could at least do their usual work without having to feel worried that their child might not be safe inside the room alone. What are EVPs EVP is short for the term Electronic Voice Phenomenon. EVPs pertain to sounds or voices that are allegedly coming from beyond the grave. In the world of the ghost hunters, EVPs are voice recordings that are sent by ghosts or souls that have not moved on. These are sometimes used to prove that there really is life after death. Basically, a baby monitor, also known as a baby alarm, is a device that can be used to monitor your children or babies even if they are located in a separate room than yours. It is a simplex transmitter and receiver system that can be used to remotely listen for different noises made by your kids and babies. Video Monitoring Options A basic baby monitor allows you to hear whatever's happening in the baby's bedroom. Then again, technological innovations have made it possible to combine sound and visual monitoring. Although the video option seems like a brilliant idea, you still won't be able to stare at the screen all the time. With the video baby monitor installed, you can continually monitor your baby without having to stand up and going to your baby in the next room. The wireless video baby monitor however has a larger scope of use. Since it is wireless, you can go anywhere around the house while bringing an LCD monitor to keep track of the status of your baby.