The most simple baby monitors make use of a simplex transmitter and receiver system. In the baby s room, a transmitter device with microphone is installed while the parents have a receiver device with a speaker. Any sound the baby makes in the room will be transmitted directly to the device held by the parents. 2) Proper Location Wireless baby monitors react to other wireless devices. To prevent interferences, try to place the baby monitor as far away from wireless devices as possible. This includes wireless phones, cell phones, and routers. 3) Prioritize Your Baby Monitor If it is unavoidable that you use wireless devices other than the baby monitor, make sure that you prioritize your baby monitor. 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. So to avoid interference, change the frequency of your baby monitor every once in a while and make sure that the frequency you use does not clash with frequencies of other devices. To change frequencies, wireless baby monitors are equipped with a switch that lets parents change frequency easily. 2) Another way to help in solving wireless interference is to find a proper location for the transmitter as well as for the receiver (baby unit and the parents unit). 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. In addition, you also need to check the battery life and power source. You should at least get a hold of answers for questions such as: "Will I need to recharge it frequently?" Interference Since a baby monitor is basically a wireless device, it is highly possible to experience interference with the signal.