A number of products on the market also offer other means of alerting deaf parents to the cries of their infants. One particular product consists of receivers that come in two parts: a main clock and a tiny sound sensor. The main clock functions as the sound-alarm system and is equipped with a vibrating rod attachment that should be positioned under the parents' mattress. 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. And so, with whatever type of monitor you want to purchase whether audio, video, digital or analog- here are a few qualities that you should always find in a good monitoring device. What to Look For in a Baby Monitor Clarity of the Reception (whether audio or video) and less static is always a good quality for the baby monitor to become effective in child safety. During night time when the lights are already switched off, you can still continue the surveillance of your baby. Low lit environments and dark rooms is not a problem with the help of the night vision feature. Another special feature that some video baby monitor provides is the baby cam feature. With the use of the Internet, parents will be able to keep track of their baby. With the new feature of these monitors, parents are not only able to provide for the safety of their children by being able to hear possible problems from a distance, but they are also given the chance to solve certain problems or bond more with their child by talking through the portable parent unit. Multi-room Monitoring A good number of baby monitors only have one radio transmitter and one or more portable receivers that make it possible for parents to listen in on their babies all day and all night long. If you prefer to have one radio transmitter in every room, there are actually a smaller number of choices.