Aside from making sure that they can provide for their infants' needs, they also have to deal with the fact that they cannot perceive sounds not even the cries of their own little ones. The majority of baby monitors designed for people who have hearing impairments are equipped with a vibrating alarm and/or a flashing light system. Compactness The smaller the size of the baby monitor, the more effortlessly you can carry it around. Be sure that you buy a model that allows you to place the receiver inside your pocket. An option that lets you wrap the portable device around your waistline is also an excellent alternative. Sound-activated Light It can be difficult to monitor baby sounds if you're trying to vacuum the floor or watch television. Although the video option seems like a brilliant idea, you still won't be able to stare at the screen all the time. For that reason, you definitely shouldn t sacrifice an excellent sound quality over supplementary features. Keep in mind that the best baby monitors are not always the most costly ones. 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. In essence, a mobile baby monitor is a radio transmitter coupled with a receiver. The set is synchronized to a predetermined frequency band that gives off a frequency modulation (FM) signal once it is switched on. More often than not, these portable monitors send out signals between the range of 49,830 MHz and 49,890 MHz. Unlike the baby monitors off the shelf, professionally installed ones usually make use of high end gadgets in watching over your baby. The Types of Baby Monitors Basically there are two types of baby monitors: audio and video baby monitors. Audio baby monitors only make use of sounds while video baby monitors make use of a camera and transmitter to send video feeds to a LCD receiver.