It is extremely helpful; especially to parents who cannot possibly stay by their baby s side at all times. The most common type used is the audio monitor. 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. One problem of analog baby monitor devices is the fact that there are instances when neighbours can actually tap in to the signal of your baby monitors and listen. 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. Always keep in mind that the monitor s distance from the child is very important. The greater the distance of the monitor from the child, then there is also a greater reduction to the amount of exposure to radiation. Most manufacturing companies nowadays have also been improving their products to make them less health threatening. 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. The analog monitors are the most affordable but are usually still reliable. They work through the radio frequency and use FM signals to transmit the sound. The major set-back of this variety is the tendency of other receivers picking up the same signal that your monitor transmits, thus less privacy and disturbances are possible. To get the best possible reception and transmission from a 2.4GHz baby monitor with video capability, switch off all 2.4GHz devices in your house. After that, you may turn on the baby monitor followed by your wireless router that is if you have one. Last but not least, you may switch on the base unit of your wireless phone.