It means that the baby monitors should be placed as far away as possible from other wireless devices. This includes cell phones, cordless phones, and routers. Microwave ovens could also cause interference on your baby monitor. Since it is inevitable that you will be using other wireless devices around your flat, one of the best things you could do to prevent interference is to always prioritize your baby monitor. 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. Unfortunately, parents are only humans and as such, you also get tired and will need rest from time to time. And what better way to rest than from the comforts of your room. This is where baby monitors come in handy. With these devices, you will still be able to monitor your baby even if he or she is in another room. Most of the time however, this system is used to keep tabs on your nanny, caretaker or babysitter instead of the baby. You may want to make sure that whoever is in charge of your baby at that moment in time is giving his or her utmost care and love. Other uses of these baby video monitors system over the Internet is when you badly want to see your baby but can t since it still office hours. Both types of devices have their own advantages and disadvantages. 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. The video monitor on the other hand works like a tiny TV by having a camera record the baby s movements while the parent could watch on a small screen receiver. And the sensory monitor is a movement detector that alarms the parent when it cannot perceive any movement from the child for more than 20 seconds.