Of course, you also need to factor in the cost of buying a baby monitor. The high-end versions can cost as much as $300 dollars or more. These mobile baby monitors normally feature a video monitoring option that allows parents to keep a closer eye on their babies. Then again, if you prefer the cheaper variety to the pricey ones, be prepared to shell out around $40 to $90 for the radio models. 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. You and your next-door neighbors may utilize similar channels and wind up hearing noises from each other's homes. Cordless telephones may also interfere with your signal. In case interference is a big issue for you, you can always look for something that utilizes the so-called no-interference technology or has additional security features. Doing two things at the same time, watching over your baby and doing your other household chores, seem quite impossible. So what do you do? You can use baby video monitors. What are baby video monitors? Baby video monitors are the advance version of the simplex transmitter and receiver system of baby monitors. 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. Disadvantages of Using Professional Wireless Baby Monitors LCD The biggest disadvantage of using professional wireless baby monitors is its cost. Compared to using off the shelf gadgets, professional ones will cost way much higher. This is expected of course since you will be given the best possible baby monitoring system they can provide.