Baby Monitors known as baby alarm, is a simplex radio transmitter and receiver system used to remotely listen for noises made by an infant. The transmitter, equipped with a microphone, is placed near to the child and the receiver, equipped with a speaker, is carried by, or near to, the person caring for them at the time. Some Baby Monitors are duplex, using transceivers that allow the caregiver to communicate back to the baby, and some have a feature allowing music to be played on the transmitter. One of the primary uses of baby monitors is when the infant is asleep in a separate room, allowing caregivers to keep track of any problems while away from the baby. Find out the amazing cheap Baby Monitors on WaySale.