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. Each time the baby wails, the alarm system triggers the rod to forewarn and awaken the parents. Parents who have children with separation anxiety often prefer this type of monitor, as hearing a familiar voice could usually calm the child. What are the major benefits of getting a two-way monitor? 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. In terms of aesthetics, wireless baby monitors also provide parents an advantage. You do not have to worry about wires sticking out or going out of place. Last but not the least you can easily transfer the device from one place to another. For example, if you want to leave your baby in the living room for a while, you can get the device from the baby s room and transfer it to the living room without going through the difficulty of moving the wires. Because of these occurrences, a lot of people have made it a point not to mention any private or confidential information while the baby monitor is switched on. Interference with cordless phones and wireless routers is also a common problem. Every now and then, your baby monitor may compete with these wireless devices for better signal reception. If you live in a small apartment or if your baby's room is only a couple of rooms away, then virtually any type of baby monitor will suffice. On the other hand, parents who own bigger houses or live in multi-story residences require a device that has a longer range. In this way, they will know for certain that the transmitter and receiver will not falter even in extended distances. If you prefer to have one radio transmitter in every room, there are actually a smaller number of choices. In order to set up a multi-room monitoring system, some parents purchase more than one baby monitors. By simply positioning one radio transmitter in each room, you can listen to the sounds coming from your baby's room even if you're busy with house chores or other stuff.