There is no total mobility since parents can easily get out of range from the baby unit. But with digital monitors, the range of the devices has been extended making it more possible for the parents to roam around the house without worrying of getting out of range. Disadvantages of Digital Baby Monitors Digital baby monitors do also have their fair share of disadvantages. EVPs And Baby Monitors: Ghosts or Just Interferences? Baby monitors are devices that help parents put their tabs on their babies even though they are not are not in the same room? But what if baby monitor transmitters pick up more than what they are supposed to? It has been the topic of discussions that baby monitors, especially audio types, pick up more than just sounds coming from the baby. One-way monitors from the name itself, basically only transmit sound through a single channel wherein parents can hear the sounds that their baby makes from the other end. However, the much-improved two-way monitors can allow parents to talk back to their child with their own portable transmitter. Parents who have children with separation anxiety often prefer this type of monitor, as hearing a familiar voice could usually calm the child. A transmitter device with a microphone is placed in the room of your baby (usually near the baby). Another device with a receiver and with speakers can be carried by you, the parents, or the baby sitter, or anyone who is taking care of the babies. With baby monitors, you can keep track of your baby s even if you are doing something else in the proximity of your house. On top of the list is changing the channel or frequency of your baby monitor. 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. In order to set up a multi-room monitoring system, some parents purchase more than one baby monitors. By simply positioning one radio transmitter in each room, you can listen to the sounds coming from your baby's room even if you're busy with house chores or other stuff. Then again, this added capability comes with a number of drawbacks.