This type receives and transmits sounds produced by the baby to a parent unit so moms or dads could hear the activities of the baby and know if there are any problems while they are at a certain distance. Lately, additional features have been placed to these audio monitors, wherein parents could now talk back to their baby. However, the growing concern of many is whether these hi-tech gadgets can be considered safe for our health, especially in gadgets such as baby monitors that are usually placed in such a close distance to children. A lot of parents nowadays fear that if they use a digital monitor to help them keep watch of their child, they might be exposing their offspring to too much of electromagnetic radiation and this may cause significant damage to the child s nervous system. Therefore, if you use the same channel for your baby monitor, you'll definitely encounter problems with the signal. 2. Adjust the channel. The majority of modern wireless devices allow the changing of channels in an attempt to fix interference issues. It may be as easy as sliding a switch or pushing a button. Basically, a baby monitor, also known as a baby alarm, is a device that can be used to monitor your children or babies even if they are located in a separate room than yours. It is a simplex transmitter and receiver system that can be used to remotely listen for different noises made by your kids and babies. This becomes very useful in instances wherein you might be preoccupied with loud noises in the area such as the sound of the television or vacuum. 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. Both modes have their own advantages and disadvantages. But as of today, parents usually prefer the wireless devices over wired ones for reasons of mobility. With wireless devices, parents can go anywhere around the house while still being able to keep tabs over their babies. The only setbacks of wireless baby monitors are that it can be more expensive to wired devices and they are also prone to interference.