As a rule, you need to place the radio transmitter within 10 feet of the crib so that it can pick up even the slightest sounds made by your baby such as breathing and movement. You can then carry the portable receiver around during the day or just leave it plugged in at the side of your bed at nighttime. This is the very reason why baby monitors have become very useful to many parents. These gadgets allow parents to monitor the baby s activities while they are not inside of the nursery or are working at a distance. What Is a Baby Monitor and How Does It Work? A baby monitor is a gadget set that has a transmitter and receiver, which sends either sound or video (depending on the type) for the parent to be able to supervise the activities of the baby while he or she is away. But now, as modern day technology progresses, so do the baby monitors. As of today, digital baby monitors have risen up to provide parents better quality and functionality when it comes to baby monitors. Digital Baby Monitors and Other Baby Monitors One obvious difference between digital baby monitors and other old baby monitors is that it s digital! Luckily, technology has made it possible for manufacturers to create baby monitors for deaf people. A regular baby monitor alerts parents each time their little bundles of joy need attention. The device usually functions by means of transmitting sound from the baby's room to a portable receiver that can be conveniently placed inside a pocket or strapped around the waist. Always keep in mind that the monitor s distance from the child is very important. The greater the distance of the monitor from the child, then there is also a greater reduction to the amount of exposure to radiation. Most manufacturing companies nowadays have also been improving their products to make them less health threatening. Another advantage is that the digital models do not have as much static and they give a clearer sound quality so you can hear your baby better. Video monitorsallow you to see and hear your child by combining sound and video just like miniature TV sets. They use a small camera either mounted on the wall, table or crib to transmit the images into the LCD display.