This will at least keep you alert and aware if the baby is making noises. Having an indicator on the gadget that activates whenever the battery is low prevents instances of the battery running out without you knowing. Not having this feature could be very dangerous to the child because one might not notice that something wrong has already happened if the monitor stops working when the battery drains. Setting Up Multi-room Baby Monitors A baby monitor can undoubtedly offer a great deal of assistance to both first-time and experienced parents. If you want to get things done while your baby dozes off in another room, then purchasing this nifty gadget is certainly the way to go. Concerned parents, like you, also have the option of setting up multi-room baby monitors. Wireless interference may come as irksome sounds, static sounds or buzzing sounds. In video monitors, interference may come in the form of fuzzy or static reception. These wireless interferences are usually caused by other wireless devices around the house like the wireless phone or a router. Other wireless baby monitors from your neighbor s house can also cause interference. And with you having a video baby monitor with night vision capability, will still be at ease since you will still be able to see your baby clearly on your monitor. Wireless Baby Monitors Baby monitors can be wireless or wired. Wired baby monitors make use of wire for the device on the baby and your device to be able to communicate with each other. With the digital technology, privacy is kept since it broadcasts private signals that only you, the parents, have access to. Another dilemma that has plagued analog baby monitors before is the range. 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. These questions seem to have no specific and factual answers and so does the question Are EVPs real? A sound is just a sound and it all depends on how they are interpreted. If the sound of a cat is interpreted as a moo of the cow, then it comes from a cow. If an inaudible noise is interpreted as voices of people from the afterlife then it comes from people in the afterlife.