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. 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. There are different types of these monitors the audio, video or sensory. The audio baby monitor receives and sends sound so that the parent could hear the baby from a distance. Transmitters are being placed 8-10 feet within the baby or closer if possible. Sounds coming from the baby are being picked up and a signal is then transmitted to the receiver. On the other hand, receivers are being carried around the house or place somewhere that is accessible to the mother or whoever it is designated to keep watch of the baby. Unfortunately you are not robots that do need sleep, eat and rest. You are only humans bound by physiologic limitations. So to aid you with your wanting to watch your baby 24 hours a day, 7 days a week, you may want to consider using wireless baby monitors night and day. What are Baby Monitors? 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. Because of the huge possibility of the electromagnetic energy used in the digital technology of modern baby monitors, a lot of parents are fearful for the safety of their child. But on the other hand, manufacturing companies of these digital monitors claim that the amount of radiation that their baby monitors emit are at levels that do not pose serious danger to children. On top of that, you can even play music or transmit almost anything you want to the baby. Some doting parents also make use of this feature to calm their babies down by talking to them over the baby monitor. Also, when your child is old enough to speak, you can surely have chats by means of this nifty device.